Home / 215,036.20-322,291.86-121,348.36

Finding the Fourth Proportional to 215,036.20, 322,291.86 and 121,348.36

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Solution

The fourth proportional to 215,036.20, 322,291.86 and 121,348.36 is: 181,874.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,036.20 : 322,291.86 = 121,348.36 : x
  2. Step 2: Convert to fraction form
    215,036.20/322,291.86 = 121,348.36/x
  3. Step 3: Cross multiply
    215,036.20x = 322,291.86 × 121,348.36
  4. Step 4: Simplify right side
    215,036.20x = 39,109,588,652.35
  5. Step 5: Solve for x
    x = 39,109,588,652.35/215,036.20
  6. Step 6: Final answer
    x = 181,874.44

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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.