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Finding the Fourth Proportional to 178,244.80, 267,328.80 and 78,404.80

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Solution

The fourth proportional to 178,244.80, 267,328.80 and 78,404.80 is: 117,590.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,244.80 : 267,328.80 = 78,404.80 : x
  2. Step 2: Convert to fraction form
    178,244.80/267,328.80 = 78,404.80/x
  3. Step 3: Cross multiply
    178,244.80x = 267,328.80 × 78,404.80
  4. Step 4: Simplify right side
    178,244.80x = 20,959,861,098.24
  5. Step 5: Solve for x
    x = 20,959,861,098.24/178,244.80
  6. Step 6: Final answer
    x = 117,590.31

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1.5x scale

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.