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Finding the Fourth Proportional to 178,978.16, 267,883.08 and 131,580.72

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Solution

The fourth proportional to 178,978.16, 267,883.08 and 131,580.72 is: 196,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,978.16 : 267,883.08 = 131,580.72 : x
  2. Step 2: Convert to fraction form
    178,978.16/267,883.08 = 131,580.72/x
  3. Step 3: Cross multiply
    178,978.16x = 267,883.08 × 131,580.72
  4. Step 4: Simplify right side
    178,978.16x = 35,248,248,542.22
  5. Step 5: Solve for x
    x = 35,248,248,542.22/178,978.16
  6. Step 6: Final answer
    x = 196,941.62

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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.