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Finding the Fourth Proportional to 259,849.80, 389,774.70 and 245,334.60

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Solution

The fourth proportional to 259,849.80, 389,774.70 and 245,334.60 is: 368,001.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,849.80 : 389,774.70 = 245,334.60 : x
  2. Step 2: Convert to fraction form
    259,849.80/389,774.70 = 245,334.60/x
  3. Step 3: Cross multiply
    259,849.80x = 389,774.70 × 245,334.60
  4. Step 4: Simplify right side
    259,849.80x = 95,625,220,114.62
  5. Step 5: Solve for x
    x = 95,625,220,114.62/259,849.80
  6. Step 6: Final answer
    x = 368,001.90

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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.