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Finding the Fourth Proportional to 299,505.68, 448,870.72 and 121,806.28

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Solution

The fourth proportional to 299,505.68, 448,870.72 and 121,806.28 is: 182,551.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,505.68 : 448,870.72 = 121,806.28 : x
  2. Step 2: Convert to fraction form
    299,505.68/448,870.72 = 121,806.28/x
  3. Step 3: Cross multiply
    299,505.68x = 448,870.72 × 121,806.28
  4. Step 4: Simplify right side
    299,505.68x = 54,675,272,604.12
  5. Step 5: Solve for x
    x = 54,675,272,604.12/299,505.68
  6. Step 6: Final answer
    x = 182,551.71

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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.