Home / 361,321.20-498,422.35-284,557.50

Finding the Fourth Proportional to 361,321.20, 498,422.35 and 284,557.50

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Solution

The fourth proportional to 361,321.20, 498,422.35 and 284,557.50 is: 392,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,321.20 : 498,422.35 = 284,557.50 : x
  2. Step 2: Convert to fraction form
    361,321.20/498,422.35 = 284,557.50/x
  3. Step 3: Cross multiply
    361,321.20x = 498,422.35 × 284,557.50
  4. Step 4: Simplify right side
    361,321.20x = 141,829,817,860.13
  5. Step 5: Solve for x
    x = 141,829,817,860.13/361,321.20
  6. Step 6: Final answer
    x = 392,531.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.