Home / 242,748.80-335,007.90-135,318.70

Finding the Fourth Proportional to 242,748.80, 335,007.90 and 135,318.70

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Solution

The fourth proportional to 242,748.80, 335,007.90 and 135,318.70 is: 186,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,748.80 : 335,007.90 = 135,318.70 : x
  2. Step 2: Convert to fraction form
    242,748.80/335,007.90 = 135,318.70/x
  3. Step 3: Cross multiply
    242,748.80x = 335,007.90 × 135,318.70
  4. Step 4: Simplify right side
    242,748.80x = 45,332,833,936.49
  5. Step 5: Solve for x
    x = 45,332,833,936.49/242,748.80
  6. Step 6: Final answer
    x = 186,747.92

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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.