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Finding the Fourth Proportional to 538,815.81, 808,223.72 and 239,225.97

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Solution

The fourth proportional to 538,815.81, 808,223.72 and 239,225.97 is: 358,838.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,815.81 : 808,223.72 = 239,225.97 : x
  2. Step 2: Convert to fraction form
    538,815.81/808,223.72 = 239,225.97/x
  3. Step 3: Cross multiply
    538,815.81x = 808,223.72 × 239,225.97
  4. Step 4: Simplify right side
    538,815.81x = 193,348,103,394.01
  5. Step 5: Solve for x
    x = 193,348,103,394.01/538,815.81
  6. Step 6: Final answer
    x = 358,838.96

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Double scale
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Similar ratio
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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.