Home / 261,785.41-361,254.26-159,981.30

Finding the Fourth Proportional to 261,785.41, 361,254.26 and 159,981.30

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Solution

The fourth proportional to 261,785.41, 361,254.26 and 159,981.30 is: 220,768.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,785.41 : 361,254.26 = 159,981.30 : x
  2. Step 2: Convert to fraction form
    261,785.41/361,254.26 = 159,981.30/x
  3. Step 3: Cross multiply
    261,785.41x = 361,254.26 × 159,981.30
  4. Step 4: Simplify right side
    261,785.41x = 57,793,926,545.29
  5. Step 5: Solve for x
    x = 57,793,926,545.29/261,785.41
  6. Step 6: Final answer
    x = 220,768.33

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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.