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Finding the Fourth Proportional to 663,508.75, 995,263.14 and 220,276.75

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Solution

The fourth proportional to 663,508.75, 995,263.14 and 220,276.75 is: 330,415.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,508.75 : 995,263.14 = 220,276.75 : x
  2. Step 2: Convert to fraction form
    663,508.75/995,263.14 = 220,276.75/x
  3. Step 3: Cross multiply
    663,508.75x = 995,263.14 × 220,276.75
  4. Step 4: Simplify right side
    663,508.75x = 219,233,329,874.00
  5. Step 5: Solve for x
    x = 219,233,329,874.00/663,508.75
  6. Step 6: Final answer
    x = 330,415.13

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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.