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Finding the Fourth Proportional to 225,662.93, 311,402.18 and 123,668.95

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Solution

The fourth proportional to 225,662.93, 311,402.18 and 123,668.95 is: 170,656.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,662.93 : 311,402.18 = 123,668.95 : x
  2. Step 2: Convert to fraction form
    225,662.93/311,402.18 = 123,668.95/x
  3. Step 3: Cross multiply
    225,662.93x = 311,402.18 × 123,668.95
  4. Step 4: Simplify right side
    225,662.93x = 38,510,780,158.98
  5. Step 5: Solve for x
    x = 38,510,780,158.98/225,662.93
  6. Step 6: Final answer
    x = 170,656.21

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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.