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Finding the Fourth Proportional to 267,427.70, 401,141.55 and 89,916.20

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Solution

The fourth proportional to 267,427.70, 401,141.55 and 89,916.20 is: 134,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,427.70 : 401,141.55 = 89,916.20 : x
  2. Step 2: Convert to fraction form
    267,427.70/401,141.55 = 89,916.20/x
  3. Step 3: Cross multiply
    267,427.70x = 401,141.55 × 89,916.20
  4. Step 4: Simplify right side
    267,427.70x = 36,069,123,838.11
  5. Step 5: Solve for x
    x = 36,069,123,838.11/267,427.70
  6. Step 6: Final answer
    x = 134,874.30

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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.