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Finding the Fourth Proportional to 375,190.39, 517,758.81 and 203,104.47

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Solution

The fourth proportional to 375,190.39, 517,758.81 and 203,104.47 is: 280,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,190.39 : 517,758.81 = 203,104.47 : x
  2. Step 2: Convert to fraction form
    375,190.39/517,758.81 = 203,104.47/x
  3. Step 3: Cross multiply
    375,190.39x = 517,758.81 × 203,104.47
  4. Step 4: Simplify right side
    375,190.39x = 105,159,128,692.88
  5. Step 5: Solve for x
    x = 105,159,128,692.88/375,190.39
  6. Step 6: Final answer
    x = 280,282.04

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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.