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Finding the Fourth Proportional to 520,141.64, 780,227.04 and 254,114.96

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Solution

The fourth proportional to 520,141.64, 780,227.04 and 254,114.96 is: 381,179.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,141.64 : 780,227.04 = 254,114.96 : x
  2. Step 2: Convert to fraction form
    520,141.64/780,227.04 = 254,114.96/x
  3. Step 3: Cross multiply
    520,141.64x = 780,227.04 × 254,114.96
  4. Step 4: Simplify right side
    520,141.64x = 198,267,363,060.52
  5. Step 5: Solve for x
    x = 198,267,363,060.52/520,141.64
  6. Step 6: Final answer
    x = 381,179.56

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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.