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Finding the Fourth Proportional to 220,481.64, 304,264.26 and 119,879.40

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Solution

The fourth proportional to 220,481.64, 304,264.26 and 119,879.40 is: 165,433.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,481.64 : 304,264.26 = 119,879.40 : x
  2. Step 2: Convert to fraction form
    220,481.64/304,264.26 = 119,879.40/x
  3. Step 3: Cross multiply
    220,481.64x = 304,264.26 × 119,879.40
  4. Step 4: Simplify right side
    220,481.64x = 36,475,016,930.24
  5. Step 5: Solve for x
    x = 36,475,016,930.24/220,481.64
  6. Step 6: Final answer
    x = 165,433.35

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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.