Home / 219,821.10-329,731.65-79,529.10

Finding the Fourth Proportional to 219,821.10, 329,731.65 and 79,529.10

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Solution

The fourth proportional to 219,821.10, 329,731.65 and 79,529.10 is: 119,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,821.10 : 329,731.65 = 79,529.10 : x
  2. Step 2: Convert to fraction form
    219,821.10/329,731.65 = 79,529.10/x
  3. Step 3: Cross multiply
    219,821.10x = 329,731.65 × 79,529.10
  4. Step 4: Simplify right side
    219,821.10x = 26,223,261,366.02
  5. Step 5: Solve for x
    x = 26,223,261,366.02/219,821.10
  6. Step 6: Final answer
    x = 119,293.65

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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.