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Finding the Fourth Proportional to 300,691.27, 450,557.12 and 220,356.95

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Solution

The fourth proportional to 300,691.27, 450,557.12 and 220,356.95 is: 330,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,691.27 : 450,557.12 = 220,356.95 : x
  2. Step 2: Convert to fraction form
    300,691.27/450,557.12 = 220,356.95/x
  3. Step 3: Cross multiply
    300,691.27x = 450,557.12 × 220,356.95
  4. Step 4: Simplify right side
    300,691.27x = 99,283,390,511.20
  5. Step 5: Solve for x
    x = 99,283,390,511.20/300,691.27
  6. Step 6: Final answer
    x = 330,183.82

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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.