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Finding the Fourth Proportional to 308,578.32, 463,042.32 and 121,721.04

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Solution

The fourth proportional to 308,578.32, 463,042.32 and 121,721.04 is: 182,650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,578.32 : 463,042.32 = 121,721.04 : x
  2. Step 2: Convert to fraction form
    308,578.32/463,042.32 = 121,721.04/x
  3. Step 3: Cross multiply
    308,578.32x = 463,042.32 × 121,721.04
  4. Step 4: Simplify right side
    308,578.32x = 56,361,992,754.41
  5. Step 5: Solve for x
    x = 56,361,992,754.41/308,578.32
  6. Step 6: Final answer
    x = 182,650.53

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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.