Home / 259,862.69-389,480.12-126,543.17

Finding the Fourth Proportional to 259,862.69, 389,480.12 and 126,543.17

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Solution

The fourth proportional to 259,862.69, 389,480.12 and 126,543.17 is: 189,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,862.69 : 389,480.12 = 126,543.17 : x
  2. Step 2: Convert to fraction form
    259,862.69/389,480.12 = 126,543.17/x
  3. Step 3: Cross multiply
    259,862.69x = 389,480.12 × 126,543.17
  4. Step 4: Simplify right side
    259,862.69x = 49,286,048,404.06
  5. Step 5: Solve for x
    x = 49,286,048,404.06/259,862.69
  6. Step 6: Final answer
    x = 189,661.89

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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.