Home / 344,380.20-516,569.52-91,660.72

Finding the Fourth Proportional to 344,380.20, 516,569.52 and 91,660.72

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Solution

The fourth proportional to 344,380.20, 516,569.52 and 91,660.72 is: 137,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,380.20 : 516,569.52 = 91,660.72 : x
  2. Step 2: Convert to fraction form
    344,380.20/516,569.52 = 91,660.72/x
  3. Step 3: Cross multiply
    344,380.20x = 516,569.52 × 91,660.72
  4. Step 4: Simplify right side
    344,380.20x = 47,349,134,133.25
  5. Step 5: Solve for x
    x = 47,349,134,133.25/344,380.20
  6. Step 6: Final answer
    x = 137,490.87

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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.