Home / 664,268.20-996,402.30-221,036.20

Finding the Fourth Proportional to 664,268.20, 996,402.30 and 221,036.20

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Solution

The fourth proportional to 664,268.20, 996,402.30 and 221,036.20 is: 331,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,268.20 : 996,402.30 = 221,036.20 : x
  2. Step 2: Convert to fraction form
    664,268.20/996,402.30 = 221,036.20/x
  3. Step 3: Cross multiply
    664,268.20x = 996,402.30 × 221,036.20
  4. Step 4: Simplify right side
    664,268.20x = 220,240,978,063.26
  5. Step 5: Solve for x
    x = 220,240,978,063.26/664,268.20
  6. Step 6: Final answer
    x = 331,554.30

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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.