Home / 259,968.30-389,952.45-256,031.70

Finding the Fourth Proportional to 259,968.30, 389,952.45 and 256,031.70

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Solution

The fourth proportional to 259,968.30, 389,952.45 and 256,031.70 is: 384,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,968.30 : 389,952.45 = 256,031.70 : x
  2. Step 2: Convert to fraction form
    259,968.30/389,952.45 = 256,031.70/x
  3. Step 3: Cross multiply
    259,968.30x = 389,952.45 × 256,031.70
  4. Step 4: Simplify right side
    259,968.30x = 99,840,188,692.67
  5. Step 5: Solve for x
    x = 99,840,188,692.67/259,968.30
  6. Step 6: Final answer
    x = 384,047.55

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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.