Home / 208,891.20-288,270.18-113,397.96

Finding the Fourth Proportional to 208,891.20, 288,270.18 and 113,397.96

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Solution

The fourth proportional to 208,891.20, 288,270.18 and 113,397.96 is: 156,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,891.20 : 288,270.18 = 113,397.96 : x
  2. Step 2: Convert to fraction form
    208,891.20/288,270.18 = 113,397.96/x
  3. Step 3: Cross multiply
    208,891.20x = 288,270.18 × 113,397.96
  4. Step 4: Simplify right side
    208,891.20x = 32,689,250,340.83
  5. Step 5: Solve for x
    x = 32,689,250,340.83/208,891.20
  6. Step 6: Final answer
    x = 156,489.36

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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.