Home / 438,200.97-657,374.10-153,817.73

Finding the Fourth Proportional to 438,200.97, 657,374.10 and 153,817.73

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Solution

The fourth proportional to 438,200.97, 657,374.10 and 153,817.73 is: 230,752.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,200.97 : 657,374.10 = 153,817.73 : x
  2. Step 2: Convert to fraction form
    438,200.97/657,374.10 = 153,817.73/x
  3. Step 3: Cross multiply
    438,200.97x = 657,374.10 × 153,817.73
  4. Step 4: Simplify right side
    438,200.97x = 101,115,791,822.79
  5. Step 5: Solve for x
    x = 101,115,791,822.79/438,200.97
  6. Step 6: Final answer
    x = 230,752.09

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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.