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Finding the Fourth Proportional to 218,594.70, 301,661.79 and 123,103.02

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Solution

The fourth proportional to 218,594.70, 301,661.79 and 123,103.02 is: 169,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,594.70 : 301,661.79 = 123,103.02 : x
  2. Step 2: Convert to fraction form
    218,594.70/301,661.79 = 123,103.02/x
  3. Step 3: Cross multiply
    218,594.70x = 301,661.79 × 123,103.02
  4. Step 4: Simplify right side
    218,594.70x = 37,135,477,367.61
  5. Step 5: Solve for x
    x = 37,135,477,367.61/218,594.70
  6. Step 6: Final answer
    x = 169,882.79

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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.