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Finding the Fourth Proportional to 557,339.70, 836,009.55 and 202,365.30

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Solution

The fourth proportional to 557,339.70, 836,009.55 and 202,365.30 is: 303,547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,339.70 : 836,009.55 = 202,365.30 : x
  2. Step 2: Convert to fraction form
    557,339.70/836,009.55 = 202,365.30/x
  3. Step 3: Cross multiply
    557,339.70x = 836,009.55 × 202,365.30
  4. Step 4: Simplify right side
    557,339.70x = 169,179,323,388.62
  5. Step 5: Solve for x
    x = 169,179,323,388.62/557,339.70
  6. Step 6: Final answer
    x = 303,547.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.