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Finding the Fourth Proportional to 298,969.26, 448,575.39 and 121,490.16

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Solution

The fourth proportional to 298,969.26, 448,575.39 and 121,490.16 is: 182,284.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,969.26 : 448,575.39 = 121,490.16 : x
  2. Step 2: Convert to fraction form
    298,969.26/448,575.39 = 121,490.16/x
  3. Step 3: Cross multiply
    298,969.26x = 448,575.39 × 121,490.16
  4. Step 4: Simplify right side
    298,969.26x = 54,497,495,903.16
  5. Step 5: Solve for x
    x = 54,497,495,903.16/298,969.26
  6. Step 6: Final answer
    x = 182,284.61

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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.