Home / 457,724.12-686,687.32-154,133.18

Finding the Fourth Proportional to 457,724.12, 686,687.32 and 154,133.18

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Solution

The fourth proportional to 457,724.12, 686,687.32 and 154,133.18 is: 231,233.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,724.12 : 686,687.32 = 154,133.18 : x
  2. Step 2: Convert to fraction form
    457,724.12/686,687.32 = 154,133.18/x
  3. Step 3: Cross multiply
    457,724.12x = 686,687.32 × 154,133.18
  4. Step 4: Simplify right side
    457,724.12x = 105,841,299,631.59
  5. Step 5: Solve for x
    x = 105,841,299,631.59/457,724.12
  6. Step 6: Final answer
    x = 231,233.83

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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.