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Finding the Fourth Proportional to 178,540.40, 267,810.60 and 53,865.20

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Solution

The fourth proportional to 178,540.40, 267,810.60 and 53,865.20 is: 80,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,540.40 : 267,810.60 = 53,865.20 : x
  2. Step 2: Convert to fraction form
    178,540.40/267,810.60 = 53,865.20/x
  3. Step 3: Cross multiply
    178,540.40x = 267,810.60 × 53,865.20
  4. Step 4: Simplify right side
    178,540.40x = 14,425,671,531.12
  5. Step 5: Solve for x
    x = 14,425,671,531.12/178,540.40
  6. Step 6: Final answer
    x = 80,797.80

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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.