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Finding the Fourth Proportional to 262,543.80, 393,815.67 and 75,555.30

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Solution

The fourth proportional to 262,543.80, 393,815.67 and 75,555.30 is: 113,332.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,543.80 : 393,815.67 = 75,555.30 : x
  2. Step 2: Convert to fraction form
    262,543.80/393,815.67 = 75,555.30/x
  3. Step 3: Cross multiply
    262,543.80x = 393,815.67 × 75,555.30
  4. Step 4: Simplify right side
    262,543.80x = 29,754,861,091.55
  5. Step 5: Solve for x
    x = 29,754,861,091.55/262,543.80
  6. Step 6: Final answer
    x = 113,332.94

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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.