Home / 257,769.18-386,498.43-115,588.71

Finding the Fourth Proportional to 257,769.18, 386,498.43 and 115,588.71

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Solution

The fourth proportional to 257,769.18, 386,498.43 and 115,588.71 is: 173,313.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,769.18 : 386,498.43 = 115,588.71 : x
  2. Step 2: Convert to fraction form
    257,769.18/386,498.43 = 115,588.71/x
  3. Step 3: Cross multiply
    257,769.18x = 386,498.43 × 115,588.71
  4. Step 4: Simplify right side
    257,769.18x = 44,674,854,940.73
  5. Step 5: Solve for x
    x = 44,674,854,940.73/257,769.18
  6. Step 6: Final answer
    x = 173,313.41

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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.