Home / 219,110.57-328,702.18-76,918.97

Finding the Fourth Proportional to 219,110.57, 328,702.18 and 76,918.97

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Solution

The fourth proportional to 219,110.57, 328,702.18 and 76,918.97 is: 115,391.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,110.57 : 328,702.18 = 76,918.97 : x
  2. Step 2: Convert to fraction form
    219,110.57/328,702.18 = 76,918.97/x
  3. Step 3: Cross multiply
    219,110.57x = 328,702.18 × 76,918.97
  4. Step 4: Simplify right side
    219,110.57x = 25,283,433,122.35
  5. Step 5: Solve for x
    x = 25,283,433,122.35/219,110.57
  6. Step 6: Final answer
    x = 115,391.21

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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.