Home / 259,748.90-389,623.35-165,745.70

Finding the Fourth Proportional to 259,748.90, 389,623.35 and 165,745.70

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Solution

The fourth proportional to 259,748.90, 389,623.35 and 165,745.70 is: 248,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,748.90 : 389,623.35 = 165,745.70 : x
  2. Step 2: Convert to fraction form
    259,748.90/389,623.35 = 165,745.70/x
  3. Step 3: Cross multiply
    259,748.90x = 389,623.35 × 165,745.70
  4. Step 4: Simplify right side
    259,748.90x = 64,578,394,882.10
  5. Step 5: Solve for x
    x = 64,578,394,882.10/259,748.90
  6. Step 6: Final answer
    x = 248,618.55

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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.