Home / 442,072.20-663,108.30-331,480.20

Finding the Fourth Proportional to 442,072.20, 663,108.30 and 331,480.20

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Solution

The fourth proportional to 442,072.20, 663,108.30 and 331,480.20 is: 497,220.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,072.20 : 663,108.30 = 331,480.20 : x
  2. Step 2: Convert to fraction form
    442,072.20/663,108.30 = 331,480.20/x
  3. Step 3: Cross multiply
    442,072.20x = 663,108.30 × 331,480.20
  4. Step 4: Simplify right side
    442,072.20x = 219,807,271,905.66
  5. Step 5: Solve for x
    x = 219,807,271,905.66/442,072.20
  6. Step 6: Final answer
    x = 497,220.30

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Similar ratio
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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.