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Finding the Fourth Proportional to 299,261.20, 412,692.40 and 201,365.04

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Solution

The fourth proportional to 299,261.20, 412,692.40 and 201,365.04 is: 277,689.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,261.20 : 412,692.40 = 201,365.04 : x
  2. Step 2: Convert to fraction form
    299,261.20/412,692.40 = 201,365.04/x
  3. Step 3: Cross multiply
    299,261.20x = 412,692.40 × 201,365.04
  4. Step 4: Simplify right side
    299,261.20x = 83,101,821,633.70
  5. Step 5: Solve for x
    x = 83,101,821,633.70/299,261.20
  6. Step 6: Final answer
    x = 277,689.93

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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.