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Finding the Fourth Proportional to 178,754.40, 268,131.51 and 45,634.62

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Solution

The fourth proportional to 178,754.40, 268,131.51 and 45,634.62 is: 68,451.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,754.40 : 268,131.51 = 45,634.62 : x
  2. Step 2: Convert to fraction form
    178,754.40/268,131.51 = 45,634.62/x
  3. Step 3: Cross multiply
    178,754.40x = 268,131.51 × 45,634.62
  4. Step 4: Simplify right side
    178,754.40x = 12,236,079,568.88
  5. Step 5: Solve for x
    x = 12,236,079,568.88/178,754.40
  6. Step 6: Final answer
    x = 68,451.91

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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.