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Finding the Fourth Proportional to 154,118, 231,177 and 43,310

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Solution

The fourth proportional to 154,118, 231,177 and 43,310 is: 64,965

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,118 : 231,177 = 43,310 : x
  2. Step 2: Convert to fraction form
    154,118/231,177 = 43,310/x
  3. Step 3: Cross multiply
    154,118x = 231,177 × 43,310
  4. Step 4: Simplify right side
    154,118x = 10,012,275,870
  5. Step 5: Solve for x
    x = 10,012,275,870/154,118
  6. Step 6: Final answer
    x = 64,965

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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.