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Finding the Fourth Proportional to 371,767.81, 513,042.71 and 202,001.93

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Solution

The fourth proportional to 371,767.81, 513,042.71 and 202,001.93 is: 278,764.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,767.81 : 513,042.71 = 202,001.93 : x
  2. Step 2: Convert to fraction form
    371,767.81/513,042.71 = 202,001.93/x
  3. Step 3: Cross multiply
    371,767.81x = 513,042.71 × 202,001.93
  4. Step 4: Simplify right side
    371,767.81x = 103,635,617,592.43
  5. Step 5: Solve for x
    x = 103,635,617,592.43/371,767.81
  6. Step 6: Final answer
    x = 278,764.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.