Home / 438,446.31-657,699.18-154,102.29

Finding the Fourth Proportional to 438,446.31, 657,699.18 and 154,102.29

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Solution

The fourth proportional to 438,446.31, 657,699.18 and 154,102.29 is: 231,163.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,446.31 : 657,699.18 = 154,102.29 : x
  2. Step 2: Convert to fraction form
    438,446.31/657,699.18 = 154,102.29/x
  3. Step 3: Cross multiply
    438,446.31x = 657,699.18 × 154,102.29
  4. Step 4: Simplify right side
    438,446.31x = 101,352,949,769.12
  5. Step 5: Solve for x
    x = 101,352,949,769.12/438,446.31
  6. Step 6: Final answer
    x = 231,163.88

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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.