Home / 259,023.03-387,817.13-132,390.57

Finding the Fourth Proportional to 259,023.03, 387,817.13 and 132,390.57

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Solution

The fourth proportional to 259,023.03, 387,817.13 and 132,390.57 is: 198,219.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,023.03 : 387,817.13 = 132,390.57 : x
  2. Step 2: Convert to fraction form
    259,023.03/387,817.13 = 132,390.57/x
  3. Step 3: Cross multiply
    259,023.03x = 387,817.13 × 132,390.57
  4. Step 4: Simplify right side
    259,023.03x = 51,343,330,896.46
  5. Step 5: Solve for x
    x = 51,343,330,896.46/259,023.03
  6. Step 6: Final answer
    x = 198,219.17

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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.