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Finding the Fourth Proportional to 323,026.28, 484,502.41 and 86,387.41

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Solution

The fourth proportional to 323,026.28, 484,502.41 and 86,387.41 is: 129,571.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,026.28 : 484,502.41 = 86,387.41 : x
  2. Step 2: Convert to fraction form
    323,026.28/484,502.41 = 86,387.41/x
  3. Step 3: Cross multiply
    323,026.28x = 484,502.41 × 86,387.41
  4. Step 4: Simplify right side
    323,026.28x = 41,854,909,052.27
  5. Step 5: Solve for x
    x = 41,854,909,052.27/323,026.28
  6. Step 6: Final answer
    x = 129,571.22

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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.