Home / 325,072.18-487,704.86-156,543.78

Finding the Fourth Proportional to 325,072.18, 487,704.86 and 156,543.78

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Solution

The fourth proportional to 325,072.18, 487,704.86 and 156,543.78 is: 234,862.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,072.18 : 487,704.86 = 156,543.78 : x
  2. Step 2: Convert to fraction form
    325,072.18/487,704.86 = 156,543.78/x
  3. Step 3: Cross multiply
    325,072.18x = 487,704.86 × 156,543.78
  4. Step 4: Simplify right side
    325,072.18x = 76,347,162,308.77
  5. Step 5: Solve for x
    x = 76,347,162,308.77/325,072.18
  6. Step 6: Final answer
    x = 234,862.18

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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.