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Finding the Fourth Proportional to 520,141.52, 780,226.86 and 254,114.84

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Solution

The fourth proportional to 520,141.52, 780,226.86 and 254,114.84 is: 381,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,141.52 : 780,226.86 = 254,114.84 : x
  2. Step 2: Convert to fraction form
    520,141.52/780,226.86 = 254,114.84/x
  3. Step 3: Cross multiply
    520,141.52x = 780,226.86 × 254,114.84
  4. Step 4: Simplify right side
    520,141.52x = 198,267,219,791.47
  5. Step 5: Solve for x
    x = 198,267,219,791.47/520,141.52
  6. Step 6: Final answer
    x = 381,179.38

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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.