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Finding the Fourth Proportional to 338,630.49, 467,310.74 and 187,727.49

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Solution

The fourth proportional to 338,630.49, 467,310.74 and 187,727.49 is: 259,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,630.49 : 467,310.74 = 187,727.49 : x
  2. Step 2: Convert to fraction form
    338,630.49/467,310.74 = 187,727.49/x
  3. Step 3: Cross multiply
    338,630.49x = 467,310.74 × 187,727.49
  4. Step 4: Simplify right side
    338,630.49x = 87,727,071,331.61
  5. Step 5: Solve for x
    x = 87,727,071,331.61/338,630.49
  6. Step 6: Final answer
    x = 259,064.30

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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.