Home / 663,664.20-995,496.30-243,241.80

Finding the Fourth Proportional to 663,664.20, 995,496.30 and 243,241.80

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Solution

The fourth proportional to 663,664.20, 995,496.30 and 243,241.80 is: 364,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,664.20 : 995,496.30 = 243,241.80 : x
  2. Step 2: Convert to fraction form
    663,664.20/995,496.30 = 243,241.80/x
  3. Step 3: Cross multiply
    663,664.20x = 995,496.30 × 243,241.80
  4. Step 4: Simplify right side
    663,664.20x = 242,146,311,905.34
  5. Step 5: Solve for x
    x = 242,146,311,905.34/663,664.20
  6. Step 6: Final answer
    x = 364,862.70

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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.