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Finding the Fourth Proportional to 178,340.76, 267,433.38 and 67,455

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Solution

The fourth proportional to 178,340.76, 267,433.38 and 67,455 is: 101,153.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,340.76 : 267,433.38 = 67,455 : x
  2. Step 2: Convert to fraction form
    178,340.76/267,433.38 = 67,455/x
  3. Step 3: Cross multiply
    178,340.76x = 267,433.38 × 67,455
  4. Step 4: Simplify right side
    178,340.76x = 18,039,718,647.90
  5. Step 5: Solve for x
    x = 18,039,718,647.90/178,340.76
  6. Step 6: Final answer
    x = 101,153.09

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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.