Home / 378,032.20-567,048.30-141,325.90

Finding the Fourth Proportional to 378,032.20, 567,048.30 and 141,325.90

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Solution

The fourth proportional to 378,032.20, 567,048.30 and 141,325.90 is: 211,988.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,032.20 : 567,048.30 = 141,325.90 : x
  2. Step 2: Convert to fraction form
    378,032.20/567,048.30 = 141,325.90/x
  3. Step 3: Cross multiply
    378,032.20x = 567,048.30 × 141,325.90
  4. Step 4: Simplify right side
    378,032.20x = 80,138,611,340.97
  5. Step 5: Solve for x
    x = 80,138,611,340.97/378,032.20
  6. Step 6: Final answer
    x = 211,988.85

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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.