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Finding the Fourth Proportional to 178,689.60, 267,937.20 and 73,519.20

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Solution

The fourth proportional to 178,689.60, 267,937.20 and 73,519.20 is: 110,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,689.60 : 267,937.20 = 73,519.20 : x
  2. Step 2: Convert to fraction form
    178,689.60/267,937.20 = 73,519.20/x
  3. Step 3: Cross multiply
    178,689.60x = 267,937.20 × 73,519.20
  4. Step 4: Simplify right side
    178,689.60x = 19,698,528,594.24
  5. Step 5: Solve for x
    x = 19,698,528,594.24/178,689.60
  6. Step 6: Final answer
    x = 110,238.81

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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.