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Finding the Fourth Proportional to 663,490.13, 995,235.20 and 164,854.13

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Solution

The fourth proportional to 663,490.13, 995,235.20 and 164,854.13 is: 247,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,490.13 : 995,235.20 = 164,854.13 : x
  2. Step 2: Convert to fraction form
    663,490.13/995,235.20 = 164,854.13/x
  3. Step 3: Cross multiply
    663,490.13x = 995,235.20 × 164,854.13
  4. Step 4: Simplify right side
    663,490.13x = 164,068,633,041.38
  5. Step 5: Solve for x
    x = 164,068,633,041.38/663,490.13
  6. Step 6: Final answer
    x = 247,281.20

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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.