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Finding the Fourth Proportional to 303,654, 419,042.55 and 169,518

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Solution

The fourth proportional to 303,654, 419,042.55 and 169,518 is: 233,934.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,654 : 419,042.55 = 169,518 : x
  2. Step 2: Convert to fraction form
    303,654/419,042.55 = 169,518/x
  3. Step 3: Cross multiply
    303,654x = 419,042.55 × 169,518
  4. Step 4: Simplify right side
    303,654x = 71,035,254,990.90
  5. Step 5: Solve for x
    x = 71,035,254,990.90/303,654
  6. Step 6: Final answer
    x = 233,934.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.