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Finding the Fourth Proportional to 219,077.55, 328,656.92 and 69,355.53

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Solution

The fourth proportional to 219,077.55, 328,656.92 and 69,355.53 is: 104,046.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,077.55 : 328,656.92 = 69,355.53 : x
  2. Step 2: Convert to fraction form
    219,077.55/328,656.92 = 69,355.53/x
  3. Step 3: Cross multiply
    219,077.55x = 328,656.92 × 69,355.53
  4. Step 4: Simplify right side
    219,077.55x = 22,794,174,527.99
  5. Step 5: Solve for x
    x = 22,794,174,527.99/219,077.55
  6. Step 6: Final answer
    x = 104,046.14

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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.