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Finding the Fourth Proportional to 267,339.80, 401,009.70 and 80,351.30

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Solution

The fourth proportional to 267,339.80, 401,009.70 and 80,351.30 is: 120,526.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,339.80 : 401,009.70 = 80,351.30 : x
  2. Step 2: Convert to fraction form
    267,339.80/401,009.70 = 80,351.30/x
  3. Step 3: Cross multiply
    267,339.80x = 401,009.70 × 80,351.30
  4. Step 4: Simplify right side
    267,339.80x = 32,221,650,707.61
  5. Step 5: Solve for x
    x = 32,221,650,707.61/267,339.80
  6. Step 6: Final answer
    x = 120,526.95

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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.