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Finding the Fourth Proportional to 178,196.60, 267,366.90 and 78,375.80

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Solution

The fourth proportional to 178,196.60, 267,366.90 and 78,375.80 is: 117,595.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,196.60 : 267,366.90 = 78,375.80 : x
  2. Step 2: Convert to fraction form
    178,196.60/267,366.90 = 78,375.80/x
  3. Step 3: Cross multiply
    178,196.60x = 267,366.90 × 78,375.80
  4. Step 4: Simplify right side
    178,196.60x = 20,955,094,681.02
  5. Step 5: Solve for x
    x = 20,955,094,681.02/178,196.60
  6. Step 6: Final answer
    x = 117,595.37

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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.