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Finding the Fourth Proportional to 291,679.28, 437,540.36 and 104,692.40

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Solution

The fourth proportional to 291,679.28, 437,540.36 and 104,692.40 is: 157,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,679.28 : 437,540.36 = 104,692.40 : x
  2. Step 2: Convert to fraction form
    291,679.28/437,540.36 = 104,692.40/x
  3. Step 3: Cross multiply
    291,679.28x = 437,540.36 × 104,692.40
  4. Step 4: Simplify right side
    291,679.28x = 45,807,150,385.26
  5. Step 5: Solve for x
    x = 45,807,150,385.26/291,679.28
  6. Step 6: Final answer
    x = 157,046.30

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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.