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Finding the Fourth Proportional to 425,077.07, 637,504.88 and 200,377.85

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Solution

The fourth proportional to 425,077.07, 637,504.88 and 200,377.85 is: 300,514.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,077.07 : 637,504.88 = 200,377.85 : x
  2. Step 2: Convert to fraction form
    425,077.07/637,504.88 = 200,377.85/x
  3. Step 3: Cross multiply
    425,077.07x = 637,504.88 × 200,377.85
  4. Step 4: Simplify right side
    425,077.07x = 127,741,853,029.49
  5. Step 5: Solve for x
    x = 127,741,853,029.49/425,077.07
  6. Step 6: Final answer
    x = 300,514.57

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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.