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Finding the Fourth Proportional to 178,255.49, 267,287.24 and 78,300.68

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Solution

The fourth proportional to 178,255.49, 267,287.24 and 78,300.68 is: 117,408.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,255.49 : 267,287.24 = 78,300.68 : x
  2. Step 2: Convert to fraction form
    178,255.49/267,287.24 = 78,300.68/x
  3. Step 3: Cross multiply
    178,255.49x = 267,287.24 × 78,300.68
  4. Step 4: Simplify right side
    178,255.49x = 20,928,771,506.64
  5. Step 5: Solve for x
    x = 20,928,771,506.64/178,255.49
  6. Step 6: Final answer
    x = 117,408.85

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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.