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Finding the Fourth Proportional to 664,859.25, 997,288.88 and 166,223.25

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Solution

The fourth proportional to 664,859.25, 997,288.88 and 166,223.25 is: 249,334.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,859.25 : 997,288.88 = 166,223.25 : x
  2. Step 2: Convert to fraction form
    664,859.25/997,288.88 = 166,223.25/x
  3. Step 3: Cross multiply
    664,859.25x = 997,288.88 × 166,223.25
  4. Step 4: Simplify right side
    664,859.25x = 165,772,597,991.34
  5. Step 5: Solve for x
    x = 165,772,597,991.34/664,859.25
  6. Step 6: Final answer
    x = 249,334.88

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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.