Home / 219,946.48-329,952.20-79,672.40

Finding the Fourth Proportional to 219,946.48, 329,952.20 and 79,672.40

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Solution

The fourth proportional to 219,946.48, 329,952.20 and 79,672.40 is: 119,520.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,946.48 : 329,952.20 = 79,672.40 : x
  2. Step 2: Convert to fraction form
    219,946.48/329,952.20 = 79,672.40/x
  3. Step 3: Cross multiply
    219,946.48x = 329,952.20 × 79,672.40
  4. Step 4: Simplify right side
    219,946.48x = 26,288,083,659.28
  5. Step 5: Solve for x
    x = 26,288,083,659.28/219,946.48
  6. Step 6: Final answer
    x = 119,520.37

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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.