Home / 432,939.60-649,511.80-137,451.60

Finding the Fourth Proportional to 432,939.60, 649,511.80 and 137,451.60

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Solution

The fourth proportional to 432,939.60, 649,511.80 and 137,451.60 is: 206,209.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,939.60 : 649,511.80 = 137,451.60 : x
  2. Step 2: Convert to fraction form
    432,939.60/649,511.80 = 137,451.60/x
  3. Step 3: Cross multiply
    432,939.60x = 649,511.80 × 137,451.60
  4. Step 4: Simplify right side
    432,939.60x = 89,276,436,128.88
  5. Step 5: Solve for x
    x = 89,276,436,128.88/432,939.60
  6. Step 6: Final answer
    x = 206,209.91

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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.