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Finding the Fourth Proportional to 178,062.89, 267,225.01 and 143,420.81

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Solution

The fourth proportional to 178,062.89, 267,225.01 and 143,420.81 is: 215,236.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,062.89 : 267,225.01 = 143,420.81 : x
  2. Step 2: Convert to fraction form
    178,062.89/267,225.01 = 143,420.81/x
  3. Step 3: Cross multiply
    178,062.89x = 267,225.01 × 143,420.81
  4. Step 4: Simplify right side
    178,062.89x = 38,325,625,691.78
  5. Step 5: Solve for x
    x = 38,325,625,691.78/178,062.89
  6. Step 6: Final answer
    x = 215,236.46

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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.