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Finding the Fourth Proportional to 154,894.80, 231,823.80 and 136,232.40

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Solution

The fourth proportional to 154,894.80, 231,823.80 and 136,232.40 is: 203,892.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,894.80 : 231,823.80 = 136,232.40 : x
  2. Step 2: Convert to fraction form
    154,894.80/231,823.80 = 136,232.40/x
  3. Step 3: Cross multiply
    154,894.80x = 231,823.80 × 136,232.40
  4. Step 4: Simplify right side
    154,894.80x = 31,581,912,651.12
  5. Step 5: Solve for x
    x = 31,581,912,651.12/154,894.80
  6. Step 6: Final answer
    x = 203,892.66

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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.