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Finding the Fourth Proportional to 557,346.20, 836,019.30 and 202,371.80

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Solution

The fourth proportional to 557,346.20, 836,019.30 and 202,371.80 is: 303,557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,346.20 : 836,019.30 = 202,371.80 : x
  2. Step 2: Convert to fraction form
    557,346.20/836,019.30 = 202,371.80/x
  3. Step 3: Cross multiply
    557,346.20x = 836,019.30 × 202,371.80
  4. Step 4: Simplify right side
    557,346.20x = 169,186,730,575.74
  5. Step 5: Solve for x
    x = 169,186,730,575.74/557,346.20
  6. Step 6: Final answer
    x = 303,557.70

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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.