Home / 206,923.14-285,516.29-155,919.57

Finding the Fourth Proportional to 206,923.14, 285,516.29 and 155,919.57

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Solution

The fourth proportional to 206,923.14, 285,516.29 and 155,919.57 is: 215,140.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,923.14 : 285,516.29 = 155,919.57 : x
  2. Step 2: Convert to fraction form
    206,923.14/285,516.29 = 155,919.57/x
  3. Step 3: Cross multiply
    206,923.14x = 285,516.29 × 155,919.57
  4. Step 4: Simplify right side
    206,923.14x = 44,517,576,385.20
  5. Step 5: Solve for x
    x = 44,517,576,385.20/206,923.14
  6. Step 6: Final answer
    x = 215,140.64

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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.