Home / 278,174.80-383,853-170,749.36

Finding the Fourth Proportional to 278,174.80, 383,853 and 170,749.36

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Solution

The fourth proportional to 278,174.80, 383,853 and 170,749.36 is: 235,616.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,174.80 : 383,853 = 170,749.36 : x
  2. Step 2: Convert to fraction form
    278,174.80/383,853 = 170,749.36/x
  3. Step 3: Cross multiply
    278,174.80x = 383,853 × 170,749.36
  4. Step 4: Simplify right side
    278,174.80x = 65,542,654,084.08
  5. Step 5: Solve for x
    x = 65,542,654,084.08/278,174.80
  6. Step 6: Final answer
    x = 235,616.79

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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.