Home / 399,121.20-598,552.20-132,836.40

Finding the Fourth Proportional to 399,121.20, 598,552.20 and 132,836.40

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Solution

The fourth proportional to 399,121.20, 598,552.20 and 132,836.40 is: 199,211.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,121.20 : 598,552.20 = 132,836.40 : x
  2. Step 2: Convert to fraction form
    399,121.20/598,552.20 = 132,836.40/x
  3. Step 3: Cross multiply
    399,121.20x = 598,552.20 × 132,836.40
  4. Step 4: Simplify right side
    399,121.20x = 79,509,519,460.08
  5. Step 5: Solve for x
    x = 79,509,519,460.08/399,121.20
  6. Step 6: Final answer
    x = 199,211.47

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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.