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Finding the Fourth Proportional to 215,461.80, 323,340.32 and 75,220.42

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Solution

The fourth proportional to 215,461.80, 323,340.32 and 75,220.42 is: 112,882.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,461.80 : 323,340.32 = 75,220.42 : x
  2. Step 2: Convert to fraction form
    215,461.80/323,340.32 = 75,220.42/x
  3. Step 3: Cross multiply
    215,461.80x = 323,340.32 × 75,220.42
  4. Step 4: Simplify right side
    215,461.80x = 24,321,794,673.33
  5. Step 5: Solve for x
    x = 24,321,794,673.33/215,461.80
  6. Step 6: Final answer
    x = 112,882.17

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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.