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Finding the Fourth Proportional to 305,550.68, 421,660.10 and 169,584.69

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Solution

The fourth proportional to 305,550.68, 421,660.10 and 169,584.69 is: 234,026.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,550.68 : 421,660.10 = 169,584.69 : x
  2. Step 2: Convert to fraction form
    305,550.68/421,660.10 = 169,584.69/x
  3. Step 3: Cross multiply
    305,550.68x = 421,660.10 × 169,584.69
  4. Step 4: Simplify right side
    305,550.68x = 71,507,096,495.95
  5. Step 5: Solve for x
    x = 71,507,096,495.95/305,550.68
  6. Step 6: Final answer
    x = 234,026.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.