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Finding the Fourth Proportional to 267,279.48, 400,964.04 and 98,800.20

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Solution

The fourth proportional to 267,279.48, 400,964.04 and 98,800.20 is: 148,216.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,279.48 : 400,964.04 = 98,800.20 : x
  2. Step 2: Convert to fraction form
    267,279.48/400,964.04 = 98,800.20/x
  3. Step 3: Cross multiply
    267,279.48x = 400,964.04 × 98,800.20
  4. Step 4: Simplify right side
    267,279.48x = 39,615,327,344.81
  5. Step 5: Solve for x
    x = 39,615,327,344.81/267,279.48
  6. Step 6: Final answer
    x = 148,216.87

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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.