Home / 221,023.62-305,049.44-130,402.04

Finding the Fourth Proportional to 221,023.62, 305,049.44 and 130,402.04

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Solution

The fourth proportional to 221,023.62, 305,049.44 and 130,402.04 is: 179,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,023.62 : 305,049.44 = 130,402.04 : x
  2. Step 2: Convert to fraction form
    221,023.62/305,049.44 = 130,402.04/x
  3. Step 3: Cross multiply
    221,023.62x = 305,049.44 × 130,402.04
  4. Step 4: Simplify right side
    221,023.62x = 39,779,068,077.62
  5. Step 5: Solve for x
    x = 39,779,068,077.62/221,023.62
  6. Step 6: Final answer
    x = 179,976.55

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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.