Home / 455,217.20-682,825.80-155,707.55

Finding the Fourth Proportional to 455,217.20, 682,825.80 and 155,707.55

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Solution

The fourth proportional to 455,217.20, 682,825.80 and 155,707.55 is: 233,561.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,217.20 : 682,825.80 = 155,707.55 : x
  2. Step 2: Convert to fraction form
    455,217.20/682,825.80 = 155,707.55/x
  3. Step 3: Cross multiply
    455,217.20x = 682,825.80 × 155,707.55
  4. Step 4: Simplify right side
    455,217.20x = 106,321,132,394.79
  5. Step 5: Solve for x
    x = 106,321,132,394.79/455,217.20
  6. Step 6: Final answer
    x = 233,561.33

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Similar ratio
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1.5x scale

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.