Home / 372,917.60-559,376.40-215,016.20

Finding the Fourth Proportional to 372,917.60, 559,376.40 and 215,016.20

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Solution

The fourth proportional to 372,917.60, 559,376.40 and 215,016.20 is: 322,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,917.60 : 559,376.40 = 215,016.20 : x
  2. Step 2: Convert to fraction form
    372,917.60/559,376.40 = 215,016.20/x
  3. Step 3: Cross multiply
    372,917.60x = 559,376.40 × 215,016.20
  4. Step 4: Simplify right side
    372,917.60x = 120,274,987,897.68
  5. Step 5: Solve for x
    x = 120,274,987,897.68/372,917.60
  6. Step 6: Final answer
    x = 322,524.30

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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.