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Finding the Fourth Proportional to 219,034.53, 328,583.99 and 69,240.83

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Solution

The fourth proportional to 219,034.53, 328,583.99 and 69,240.83 is: 103,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,034.53 : 328,583.99 = 69,240.83 : x
  2. Step 2: Convert to fraction form
    219,034.53/328,583.99 = 69,240.83/x
  3. Step 3: Cross multiply
    219,034.53x = 328,583.99 × 69,240.83
  4. Step 4: Simplify right side
    219,034.53x = 22,751,426,722.49
  5. Step 5: Solve for x
    x = 22,751,426,722.49/219,034.53
  6. Step 6: Final answer
    x = 103,871.42

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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.