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Finding the Fourth Proportional to 178,480.57, 267,791.03 and 78,570.72

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Solution

The fourth proportional to 178,480.57, 267,791.03 and 78,570.72 is: 117,886.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,480.57 : 267,791.03 = 78,570.72 : x
  2. Step 2: Convert to fraction form
    178,480.57/267,791.03 = 78,570.72/x
  3. Step 3: Cross multiply
    178,480.57x = 267,791.03 × 78,570.72
  4. Step 4: Simplify right side
    178,480.57x = 21,040,534,036.64
  5. Step 5: Solve for x
    x = 21,040,534,036.64/178,480.57
  6. Step 6: Final answer
    x = 117,886.97

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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.