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Finding the Fourth Proportional to 438,350.04, 657,562.54 and 154,015.88

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Solution

The fourth proportional to 438,350.04, 657,562.54 and 154,015.88 is: 231,036.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,350.04 : 657,562.54 = 154,015.88 : x
  2. Step 2: Convert to fraction form
    438,350.04/657,562.54 = 154,015.88/x
  3. Step 3: Cross multiply
    438,350.04x = 657,562.54 × 154,015.88
  4. Step 4: Simplify right side
    438,350.04x = 101,275,069,580.28
  5. Step 5: Solve for x
    x = 101,275,069,580.28/438,350.04
  6. Step 6: Final answer
    x = 231,036.98

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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.