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Finding the Fourth Proportional to 219,034.88, 328,610.63 and 69,277.89

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Solution

The fourth proportional to 219,034.88, 328,610.63 and 69,277.89 is: 103,935.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,034.88 : 328,610.63 = 69,277.89 : x
  2. Step 2: Convert to fraction form
    219,034.88/328,610.63 = 69,277.89/x
  3. Step 3: Cross multiply
    219,034.88x = 328,610.63 × 69,277.89
  4. Step 4: Simplify right side
    219,034.88x = 22,765,451,251.17
  5. Step 5: Solve for x
    x = 22,765,451,251.17/219,034.88
  6. Step 6: Final answer
    x = 103,935.28

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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.