Home / 215,788.32-297,789.18-120,301.08

Finding the Fourth Proportional to 215,788.32, 297,789.18 and 120,301.08

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Solution

The fourth proportional to 215,788.32, 297,789.18 and 120,301.08 is: 166,016.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,788.32 : 297,789.18 = 120,301.08 : x
  2. Step 2: Convert to fraction form
    215,788.32/297,789.18 = 120,301.08/x
  3. Step 3: Cross multiply
    215,788.32x = 297,789.18 × 120,301.08
  4. Step 4: Simplify right side
    215,788.32x = 35,824,359,966.31
  5. Step 5: Solve for x
    x = 35,824,359,966.31/215,788.32
  6. Step 6: Final answer
    x = 166,016.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.