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Finding the Fourth Proportional to 664,101.60, 996,022.80 and 214,713.60

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Solution

The fourth proportional to 664,101.60, 996,022.80 and 214,713.60 is: 322,028.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,101.60 : 996,022.80 = 214,713.60 : x
  2. Step 2: Convert to fraction form
    664,101.60/996,022.80 = 214,713.60/x
  3. Step 3: Cross multiply
    664,101.60x = 996,022.80 × 214,713.60
  4. Step 4: Simplify right side
    664,101.60x = 213,859,641,070.08
  5. Step 5: Solve for x
    x = 213,859,641,070.08/664,101.60
  6. Step 6: Final answer
    x = 322,028.50

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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.