Home / 399,087.60-598,686.09-132,820.35

Finding the Fourth Proportional to 399,087.60, 598,686.09 and 132,820.35

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Solution

The fourth proportional to 399,087.60, 598,686.09 and 132,820.35 is: 199,248.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,087.60 : 598,686.09 = 132,820.35 : x
  2. Step 2: Convert to fraction form
    399,087.60/598,686.09 = 132,820.35/x
  3. Step 3: Cross multiply
    399,087.60x = 598,686.09 × 132,820.35
  4. Step 4: Simplify right side
    399,087.60x = 79,517,696,013.93
  5. Step 5: Solve for x
    x = 79,517,696,013.93/399,087.60
  6. Step 6: Final answer
    x = 199,248.73

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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.