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Finding the Fourth Proportional to 619,520.28, 929,280.46 and 220,176.82

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Solution

The fourth proportional to 619,520.28, 929,280.46 and 220,176.82 is: 330,265.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,520.28 : 929,280.46 = 220,176.82 : x
  2. Step 2: Convert to fraction form
    619,520.28/929,280.46 = 220,176.82/x
  3. Step 3: Cross multiply
    619,520.28x = 929,280.46 × 220,176.82
  4. Step 4: Simplify right side
    619,520.28x = 204,606,016,570.94
  5. Step 5: Solve for x
    x = 204,606,016,570.94/619,520.28
  6. Step 6: Final answer
    x = 330,265.24

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Similar ratio
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1.5x scale

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.