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Finding the Fourth Proportional to 154,327.30, 231,490.95 and 43,519.30

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Solution

The fourth proportional to 154,327.30, 231,490.95 and 43,519.30 is: 65,278.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,327.30 : 231,490.95 = 43,519.30 : x
  2. Step 2: Convert to fraction form
    154,327.30/231,490.95 = 43,519.30/x
  3. Step 3: Cross multiply
    154,327.30x = 231,490.95 × 43,519.30
  4. Step 4: Simplify right side
    154,327.30x = 10,074,324,100.34
  5. Step 5: Solve for x
    x = 10,074,324,100.34/154,327.30
  6. Step 6: Final answer
    x = 65,278.95

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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.