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Finding the Fourth Proportional to 354,179.88, 488,734.02 and 203,247.72

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Solution

The fourth proportional to 354,179.88, 488,734.02 and 203,247.72 is: 280,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,179.88 : 488,734.02 = 203,247.72 : x
  2. Step 2: Convert to fraction form
    354,179.88/488,734.02 = 203,247.72/x
  3. Step 3: Cross multiply
    354,179.88x = 488,734.02 × 203,247.72
  4. Step 4: Simplify right side
    354,179.88x = 99,334,075,251.43
  5. Step 5: Solve for x
    x = 99,334,075,251.43/354,179.88
  6. Step 6: Final answer
    x = 280,462.22

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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.