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Finding the Fourth Proportional to 267,630.40, 401,446.30 and 90,262

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Solution

The fourth proportional to 267,630.40, 401,446.30 and 90,262 is: 135,393.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,630.40 : 401,446.30 = 90,262 : x
  2. Step 2: Convert to fraction form
    267,630.40/401,446.30 = 90,262/x
  3. Step 3: Cross multiply
    267,630.40x = 401,446.30 × 90,262
  4. Step 4: Simplify right side
    267,630.40x = 36,235,345,930.60
  5. Step 5: Solve for x
    x = 36,235,345,930.60/267,630.40
  6. Step 6: Final answer
    x = 135,393.24

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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.