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Finding the Fourth Proportional to 219,129.02, 328,693.52 and 52,917.02

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Solution

The fourth proportional to 219,129.02, 328,693.52 and 52,917.02 is: 79,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,129.02 : 328,693.52 = 52,917.02 : x
  2. Step 2: Convert to fraction form
    219,129.02/328,693.52 = 52,917.02/x
  3. Step 3: Cross multiply
    219,129.02x = 328,693.52 × 52,917.02
  4. Step 4: Simplify right side
    219,129.02x = 17,393,481,571.71
  5. Step 5: Solve for x
    x = 17,393,481,571.71/219,129.02
  6. Step 6: Final answer
    x = 79,375.53

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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.