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Finding the Fourth Proportional to 203,392.60, 280,652.22 and 112,748.49

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Solution

The fourth proportional to 203,392.60, 280,652.22 and 112,748.49 is: 155,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,392.60 : 280,652.22 = 112,748.49 : x
  2. Step 2: Convert to fraction form
    203,392.60/280,652.22 = 112,748.49/x
  3. Step 3: Cross multiply
    203,392.60x = 280,652.22 × 112,748.49
  4. Step 4: Simplify right side
    203,392.60x = 31,643,114,020.15
  5. Step 5: Solve for x
    x = 31,643,114,020.15/203,392.60
  6. Step 6: Final answer
    x = 155,576.53

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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.