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Finding the Fourth Proportional to 664,860.38, 997,290.56 and 166,224.38

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Solution

The fourth proportional to 664,860.38, 997,290.56 and 166,224.38 is: 249,336.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,860.38 : 997,290.56 = 166,224.38 : x
  2. Step 2: Convert to fraction form
    664,860.38/997,290.56 = 166,224.38/x
  3. Step 3: Cross multiply
    664,860.38x = 997,290.56 × 166,224.38
  4. Step 4: Simplify right side
    664,860.38x = 165,774,000,444.96
  5. Step 5: Solve for x
    x = 165,774,000,444.96/664,860.38
  6. Step 6: Final answer
    x = 249,336.56

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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.