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Finding the Fourth Proportional to 381,974.62, 527,094.12 and 220,840.04

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Solution

The fourth proportional to 381,974.62, 527,094.12 and 220,840.04 is: 304,741.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,974.62 : 527,094.12 = 220,840.04 : x
  2. Step 2: Convert to fraction form
    381,974.62/527,094.12 = 220,840.04/x
  3. Step 3: Cross multiply
    381,974.62x = 527,094.12 × 220,840.04
  4. Step 4: Simplify right side
    381,974.62x = 116,403,486,544.57
  5. Step 5: Solve for x
    x = 116,403,486,544.57/381,974.62
  6. Step 6: Final answer
    x = 304,741.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.