Home / 259,109.30-387,786.06-159,332.68

Finding the Fourth Proportional to 259,109.30, 387,786.06 and 159,332.68

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Solution

The fourth proportional to 259,109.30, 387,786.06 and 159,332.68 is: 238,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,109.30 : 387,786.06 = 159,332.68 : x
  2. Step 2: Convert to fraction form
    259,109.30/387,786.06 = 159,332.68/x
  3. Step 3: Cross multiply
    259,109.30x = 387,786.06 × 159,332.68
  4. Step 4: Simplify right side
    259,109.30x = 61,786,992,206.44
  5. Step 5: Solve for x
    x = 61,786,992,206.44/259,109.30
  6. Step 6: Final answer
    x = 238,459.18

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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.