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Finding the Fourth Proportional to 337,990.88, 465,930.56 and 257,277.84

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Solution

The fourth proportional to 337,990.88, 465,930.56 and 257,277.84 is: 354,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,990.88 : 465,930.56 = 257,277.84 : x
  2. Step 2: Convert to fraction form
    337,990.88/465,930.56 = 257,277.84/x
  3. Step 3: Cross multiply
    337,990.88x = 465,930.56 × 257,277.84
  4. Step 4: Simplify right side
    337,990.88x = 119,873,608,066.79
  5. Step 5: Solve for x
    x = 119,873,608,066.79/337,990.88
  6. Step 6: Final answer
    x = 354,665.21

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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.