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Finding the Fourth Proportional to 664,079.80, 995,514.90 and 243,254.20

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Solution

The fourth proportional to 664,079.80, 995,514.90 and 243,254.20 is: 364,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,079.80 : 995,514.90 = 243,254.20 : x
  2. Step 2: Convert to fraction form
    664,079.80/995,514.90 = 243,254.20/x
  3. Step 3: Cross multiply
    664,079.80x = 995,514.90 × 243,254.20
  4. Step 4: Simplify right side
    664,079.80x = 242,163,180,587.58
  5. Step 5: Solve for x
    x = 242,163,180,587.58/664,079.80
  6. Step 6: Final answer
    x = 364,659.76

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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.