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Finding the Fourth Proportional to 154,438.80, 231,787.80 and 75,620.40

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Solution

The fourth proportional to 154,438.80, 231,787.80 and 75,620.40 is: 113,494.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,438.80 : 231,787.80 = 75,620.40 : x
  2. Step 2: Convert to fraction form
    154,438.80/231,787.80 = 75,620.40/x
  3. Step 3: Cross multiply
    154,438.80x = 231,787.80 × 75,620.40
  4. Step 4: Simplify right side
    154,438.80x = 17,527,886,151.12
  5. Step 5: Solve for x
    x = 17,527,886,151.12/154,438.80
  6. Step 6: Final answer
    x = 113,494.06

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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.