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Finding the Fourth Proportional to 664,870.13, 997,305.19 and 166,234.13

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Solution

The fourth proportional to 664,870.13, 997,305.19 and 166,234.13 is: 249,351.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,870.13 : 997,305.19 = 166,234.13 : x
  2. Step 2: Convert to fraction form
    664,870.13/997,305.19 = 166,234.13/x
  3. Step 3: Cross multiply
    664,870.13x = 997,305.19 × 166,234.13
  4. Step 4: Simplify right side
    664,870.13x = 165,786,160,604.14
  5. Step 5: Solve for x
    x = 165,786,160,604.14/664,870.13
  6. Step 6: Final answer
    x = 249,351.19

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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.