Home / 664,110.90-996,166.35-215,144.10

Finding the Fourth Proportional to 664,110.90, 996,166.35 and 215,144.10

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Solution

The fourth proportional to 664,110.90, 996,166.35 and 215,144.10 is: 322,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,110.90 : 996,166.35 = 215,144.10 : x
  2. Step 2: Convert to fraction form
    664,110.90/996,166.35 = 215,144.10/x
  3. Step 3: Cross multiply
    664,110.90x = 996,166.35 × 215,144.10
  4. Step 4: Simplify right side
    664,110.90x = 214,319,312,821.04
  5. Step 5: Solve for x
    x = 214,319,312,821.04/664,110.90
  6. Step 6: Final answer
    x = 322,716.15

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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.