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Finding the Fourth Proportional to 219,352.32, 328,960.44 and 79,092.72

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Solution

The fourth proportional to 219,352.32, 328,960.44 and 79,092.72 is: 118,614.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,352.32 : 328,960.44 = 79,092.72 : x
  2. Step 2: Convert to fraction form
    219,352.32/328,960.44 = 79,092.72/x
  3. Step 3: Cross multiply
    219,352.32x = 328,960.44 × 79,092.72
  4. Step 4: Simplify right side
    219,352.32x = 26,018,375,972.00
  5. Step 5: Solve for x
    x = 26,018,375,972.00/219,352.32
  6. Step 6: Final answer
    x = 118,614.55

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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.