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Finding the Fourth Proportional to 154,251.72, 231,396.30 and 43,443.72

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Solution

The fourth proportional to 154,251.72, 231,396.30 and 43,443.72 is: 65,170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,251.72 : 231,396.30 = 43,443.72 : x
  2. Step 2: Convert to fraction form
    154,251.72/231,396.30 = 43,443.72/x
  3. Step 3: Cross multiply
    154,251.72x = 231,396.30 × 43,443.72
  4. Step 4: Simplify right side
    154,251.72x = 10,052,716,066.24
  5. Step 5: Solve for x
    x = 10,052,716,066.24/154,251.72
  6. Step 6: Final answer
    x = 65,170.85

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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.