Home / 753,140.80-1,129,711.20-192,175.30

Finding the Fourth Proportional to 753,140.80, 1,129,711.20 and 192,175.30

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Solution

The fourth proportional to 753,140.80, 1,129,711.20 and 192,175.30 is: 288,262.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,140.80 : 1,129,711.20 = 192,175.30 : x
  2. Step 2: Convert to fraction form
    753,140.80/1,129,711.20 = 192,175.30/x
  3. Step 3: Cross multiply
    753,140.80x = 1,129,711.20 × 192,175.30
  4. Step 4: Simplify right side
    753,140.80x = 217,102,588,773.36
  5. Step 5: Solve for x
    x = 217,102,588,773.36/753,140.80
  6. Step 6: Final answer
    x = 288,262.95

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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.