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Finding the Fourth Proportional to 281,512.80, 422,249.76 and 123,737.76

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Solution

The fourth proportional to 281,512.80, 422,249.76 and 123,737.76 is: 185,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,512.80 : 422,249.76 = 123,737.76 : x
  2. Step 2: Convert to fraction form
    281,512.80/422,249.76 = 123,737.76/x
  3. Step 3: Cross multiply
    281,512.80x = 422,249.76 × 123,737.76
  4. Step 4: Simplify right side
    281,512.80x = 52,248,239,462.94
  5. Step 5: Solve for x
    x = 52,248,239,462.94/281,512.80
  6. Step 6: Final answer
    x = 185,598.10

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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.