Home / 644,031.20-966,046.80-223,349.60

Finding the Fourth Proportional to 644,031.20, 966,046.80 and 223,349.60

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Solution

The fourth proportional to 644,031.20, 966,046.80 and 223,349.60 is: 335,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,031.20 : 966,046.80 = 223,349.60 : x
  2. Step 2: Convert to fraction form
    644,031.20/966,046.80 = 223,349.60/x
  3. Step 3: Cross multiply
    644,031.20x = 966,046.80 × 223,349.60
  4. Step 4: Simplify right side
    644,031.20x = 215,766,166,361.28
  5. Step 5: Solve for x
    x = 215,766,166,361.28/644,031.20
  6. Step 6: Final answer
    x = 335,024.40

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Double scale
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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.