Home / 257,766.75-355,717.29-143,062.68

Finding the Fourth Proportional to 257,766.75, 355,717.29 and 143,062.68

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Solution

The fourth proportional to 257,766.75, 355,717.29 and 143,062.68 is: 197,426.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,766.75 : 355,717.29 = 143,062.68 : x
  2. Step 2: Convert to fraction form
    257,766.75/355,717.29 = 143,062.68/x
  3. Step 3: Cross multiply
    257,766.75x = 355,717.29 × 143,062.68
  4. Step 4: Simplify right side
    257,766.75x = 50,889,868,829.74
  5. Step 5: Solve for x
    x = 50,889,868,829.74/257,766.75
  6. Step 6: Final answer
    x = 197,426.04

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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.