Home / 242,949.78-335,270.46-135,519.75

Finding the Fourth Proportional to 242,949.78, 335,270.46 and 135,519.75

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Solution

The fourth proportional to 242,949.78, 335,270.46 and 135,519.75 is: 187,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,949.78 : 335,270.46 = 135,519.75 : x
  2. Step 2: Convert to fraction form
    242,949.78/335,270.46 = 135,519.75/x
  3. Step 3: Cross multiply
    242,949.78x = 335,270.46 × 135,519.75
  4. Step 4: Simplify right side
    242,949.78x = 45,435,768,921.59
  5. Step 5: Solve for x
    x = 45,435,768,921.59/242,949.78
  6. Step 6: Final answer
    x = 187,017.12

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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.