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Finding the Fourth Proportional to 344,371.82, 515,046.92 and 306,686.84

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Solution

The fourth proportional to 344,371.82, 515,046.92 and 306,686.84 is: 458,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,371.82 : 515,046.92 = 306,686.84 : x
  2. Step 2: Convert to fraction form
    344,371.82/515,046.92 = 306,686.84/x
  3. Step 3: Cross multiply
    344,371.82x = 515,046.92 × 306,686.84
  4. Step 4: Simplify right side
    344,371.82x = 157,958,114,400.87
  5. Step 5: Solve for x
    x = 157,958,114,400.87/344,371.82
  6. Step 6: Final answer
    x = 458,684.78

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1.5x scale

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.