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Finding the Fourth Proportional to 302,456.40, 453,166.20 and 197,221.20

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Solution

The fourth proportional to 302,456.40, 453,166.20 and 197,221.20 is: 295,493.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,456.40 : 453,166.20 = 197,221.20 : x
  2. Step 2: Convert to fraction form
    302,456.40/453,166.20 = 197,221.20/x
  3. Step 3: Cross multiply
    302,456.40x = 453,166.20 × 197,221.20
  4. Step 4: Simplify right side
    302,456.40x = 89,373,981,763.44
  5. Step 5: Solve for x
    x = 89,373,981,763.44/302,456.40
  6. Step 6: Final answer
    x = 295,493.77

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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.