Home / 389,139.40-536,930.49-236,257.93

Finding the Fourth Proportional to 389,139.40, 536,930.49 and 236,257.93

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Solution

The fourth proportional to 389,139.40, 536,930.49 and 236,257.93 is: 325,986.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,139.40 : 536,930.49 = 236,257.93 : x
  2. Step 2: Convert to fraction form
    389,139.40/536,930.49 = 236,257.93/x
  3. Step 3: Cross multiply
    389,139.40x = 536,930.49 × 236,257.93
  4. Step 4: Simplify right side
    389,139.40x = 126,854,086,121.29
  5. Step 5: Solve for x
    x = 126,854,086,121.29/389,139.40
  6. Step 6: Final answer
    x = 325,986.23

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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.