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Finding the Fourth Proportional to 221,426.68, 332,158.68 and 69,658.60

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Solution

The fourth proportional to 221,426.68, 332,158.68 and 69,658.60 is: 104,493.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,426.68 : 332,158.68 = 69,658.60 : x
  2. Step 2: Convert to fraction form
    221,426.68/332,158.68 = 69,658.60/x
  3. Step 3: Cross multiply
    221,426.68x = 332,158.68 × 69,658.60
  4. Step 4: Simplify right side
    221,426.68x = 23,137,708,626.65
  5. Step 5: Solve for x
    x = 23,137,708,626.65/221,426.68
  6. Step 6: Final answer
    x = 104,493.77

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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.