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Finding the Fourth Proportional to 267,220.55, 400,867.73 and 89,778.31

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Solution

The fourth proportional to 267,220.55, 400,867.73 and 89,778.31 is: 134,679.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,220.55 : 400,867.73 = 89,778.31 : x
  2. Step 2: Convert to fraction form
    267,220.55/400,867.73 = 89,778.31/x
  3. Step 3: Cross multiply
    267,220.55x = 400,867.73 × 89,778.31
  4. Step 4: Simplify right side
    267,220.55x = 35,989,226,555.21
  5. Step 5: Solve for x
    x = 35,989,226,555.21/267,220.55
  6. Step 6: Final answer
    x = 134,679.86

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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.