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Finding the Fourth Proportional to 215,193.25, 322,841.72 and 67,449.25

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Solution

The fourth proportional to 215,193.25, 322,841.72 and 67,449.25 is: 101,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,193.25 : 322,841.72 = 67,449.25 : x
  2. Step 2: Convert to fraction form
    215,193.25/322,841.72 = 67,449.25/x
  3. Step 3: Cross multiply
    215,193.25x = 322,841.72 × 67,449.25
  4. Step 4: Simplify right side
    215,193.25x = 21,775,431,882.71
  5. Step 5: Solve for x
    x = 21,775,431,882.71/215,193.25
  6. Step 6: Final answer
    x = 101,190.13

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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.