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Finding the Fourth Proportional to 371,519.49, 512,692.38 and 201,754.83

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Solution

The fourth proportional to 371,519.49, 512,692.38 and 201,754.83 is: 278,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,519.49 : 512,692.38 = 201,754.83 : x
  2. Step 2: Convert to fraction form
    371,519.49/512,692.38 = 201,754.83/x
  3. Step 3: Cross multiply
    371,519.49x = 512,692.38 × 201,754.83
  4. Step 4: Simplify right side
    371,519.49x = 103,438,163,969.20
  5. Step 5: Solve for x
    x = 103,438,163,969.20/371,519.49
  6. Step 6: Final answer
    x = 278,419.21

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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.