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Finding the Fourth Proportional to 215,079.60, 322,327.80 and 143,799.60

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Solution

The fourth proportional to 215,079.60, 322,327.80 and 143,799.60 is: 215,504.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,079.60 : 322,327.80 = 143,799.60 : x
  2. Step 2: Convert to fraction form
    215,079.60/322,327.80 = 143,799.60/x
  3. Step 3: Cross multiply
    215,079.60x = 322,327.80 × 143,799.60
  4. Step 4: Simplify right side
    215,079.60x = 46,350,608,708.88
  5. Step 5: Solve for x
    x = 46,350,608,708.88/215,079.60
  6. Step 6: Final answer
    x = 215,504.44

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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.