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Finding the Fourth Proportional to 258,449.45, 356,676.95 and 149,575.73

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Solution

The fourth proportional to 258,449.45, 356,676.95 and 149,575.73 is: 206,424.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,449.45 : 356,676.95 = 149,575.73 : x
  2. Step 2: Convert to fraction form
    258,449.45/356,676.95 = 149,575.73/x
  3. Step 3: Cross multiply
    258,449.45x = 356,676.95 × 149,575.73
  4. Step 4: Simplify right side
    258,449.45x = 53,350,213,760.98
  5. Step 5: Solve for x
    x = 53,350,213,760.98/258,449.45
  6. Step 6: Final answer
    x = 206,424.18

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1.5x scale

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.