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Finding the Fourth Proportional to 308,318.40, 425,550.48 and 200,701

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Solution

The fourth proportional to 308,318.40, 425,550.48 and 200,701 is: 277,013.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,318.40 : 425,550.48 = 200,701 : x
  2. Step 2: Convert to fraction form
    308,318.40/425,550.48 = 200,701/x
  3. Step 3: Cross multiply
    308,318.40x = 425,550.48 × 200,701
  4. Step 4: Simplify right side
    308,318.40x = 85,408,406,886.48
  5. Step 5: Solve for x
    x = 85,408,406,886.48/308,318.40
  6. Step 6: Final answer
    x = 277,013.65

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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.