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Finding the Fourth Proportional to 307,700.91, 424,648.55 and 171,761.29

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Solution

The fourth proportional to 307,700.91, 424,648.55 and 171,761.29 is: 237,042.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,700.91 : 424,648.55 = 171,761.29 : x
  2. Step 2: Convert to fraction form
    307,700.91/424,648.55 = 171,761.29/x
  3. Step 3: Cross multiply
    307,700.91x = 424,648.55 × 171,761.29
  4. Step 4: Simplify right side
    307,700.91x = 72,938,182,112.41
  5. Step 5: Solve for x
    x = 72,938,182,112.41/307,700.91
  6. Step 6: Final answer
    x = 237,042.46

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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.