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Finding the Fourth Proportional to 308,350.39, 425,654.70 and 187,530.48

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Solution

The fourth proportional to 308,350.39, 425,654.70 and 187,530.48 is: 258,871.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,350.39 : 425,654.70 = 187,530.48 : x
  2. Step 2: Convert to fraction form
    308,350.39/425,654.70 = 187,530.48/x
  3. Step 3: Cross multiply
    308,350.39x = 425,654.70 × 187,530.48
  4. Step 4: Simplify right side
    308,350.39x = 79,823,230,205.26
  5. Step 5: Solve for x
    x = 79,823,230,205.26/308,350.39
  6. Step 6: Final answer
    x = 258,871.83

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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.