Home / 330,290.20-454,764.54-291,487.96

Finding the Fourth Proportional to 330,290.20, 454,764.54 and 291,487.96

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Solution

The fourth proportional to 330,290.20, 454,764.54 and 291,487.96 is: 401,339.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,290.20 : 454,764.54 = 291,487.96 : x
  2. Step 2: Convert to fraction form
    330,290.20/454,764.54 = 291,487.96/x
  3. Step 3: Cross multiply
    330,290.20x = 454,764.54 × 291,487.96
  4. Step 4: Simplify right side
    330,290.20x = 132,558,388,044.94
  5. Step 5: Solve for x
    x = 132,558,388,044.94/330,290.20
  6. Step 6: Final answer
    x = 401,339.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.