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Finding the Fourth Proportional to 299,695.38, 449,608.79 and 112,706.90

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Solution

The fourth proportional to 299,695.38, 449,608.79 and 112,706.90 is: 169,085.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,695.38 : 449,608.79 = 112,706.90 : x
  2. Step 2: Convert to fraction form
    299,695.38/449,608.79 = 112,706.90/x
  3. Step 3: Cross multiply
    299,695.38x = 449,608.79 × 112,706.90
  4. Step 4: Simplify right side
    299,695.38x = 50,674,012,933.65
  5. Step 5: Solve for x
    x = 50,674,012,933.65/299,695.38
  6. Step 6: Final answer
    x = 169,085.07

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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.