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Finding the Fourth Proportional to 267,228.30, 400,842.45 and 265,385.10

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Solution

The fourth proportional to 267,228.30, 400,842.45 and 265,385.10 is: 398,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,228.30 : 400,842.45 = 265,385.10 : x
  2. Step 2: Convert to fraction form
    267,228.30/400,842.45 = 265,385.10/x
  3. Step 3: Cross multiply
    267,228.30x = 400,842.45 × 265,385.10
  4. Step 4: Simplify right side
    267,228.30x = 106,377,613,677.50
  5. Step 5: Solve for x
    x = 106,377,613,677.50/267,228.30
  6. Step 6: Final answer
    x = 398,077.65

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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.