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Finding the Fourth Proportional to 299,121.53, 448,767.08 and 121,755.83

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Solution

The fourth proportional to 299,121.53, 448,767.08 and 121,755.83 is: 182,668.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,121.53 : 448,767.08 = 121,755.83 : x
  2. Step 2: Convert to fraction form
    299,121.53/448,767.08 = 121,755.83/x
  3. Step 3: Cross multiply
    299,121.53x = 448,767.08 × 121,755.83
  4. Step 4: Simplify right side
    299,121.53x = 54,640,009,728.38
  5. Step 5: Solve for x
    x = 54,640,009,728.38/299,121.53
  6. Step 6: Final answer
    x = 182,668.26

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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.