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Finding the Fourth Proportional to 226,793.65, 312,969.50 and 123,423.45

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Solution

The fourth proportional to 226,793.65, 312,969.50 and 123,423.45 is: 170,321.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,793.65 : 312,969.50 = 123,423.45 : x
  2. Step 2: Convert to fraction form
    226,793.65/312,969.50 = 123,423.45/x
  3. Step 3: Cross multiply
    226,793.65x = 312,969.50 × 123,423.45
  4. Step 4: Simplify right side
    226,793.65x = 38,627,773,759.73
  5. Step 5: Solve for x
    x = 38,627,773,759.73/226,793.65
  6. Step 6: Final answer
    x = 170,321.23

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1.5x scale

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.