Home / 219,949.48-329,956.70-79,675.40

Finding the Fourth Proportional to 219,949.48, 329,956.70 and 79,675.40

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Solution

The fourth proportional to 219,949.48, 329,956.70 and 79,675.40 is: 119,524.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,949.48 : 329,956.70 = 79,675.40 : x
  2. Step 2: Convert to fraction form
    219,949.48/329,956.70 = 79,675.40/x
  3. Step 3: Cross multiply
    219,949.48x = 329,956.70 × 79,675.40
  4. Step 4: Simplify right side
    219,949.48x = 26,289,432,055.18
  5. Step 5: Solve for x
    x = 26,289,432,055.18/219,949.48
  6. Step 6: Final answer
    x = 119,524.87

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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.