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Finding the Fourth Proportional to 202,204.62, 279,131.85 and 130,619.54

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Solution

The fourth proportional to 202,204.62, 279,131.85 and 130,619.54 is: 180,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,204.62 : 279,131.85 = 130,619.54 : x
  2. Step 2: Convert to fraction form
    202,204.62/279,131.85 = 130,619.54/x
  3. Step 3: Cross multiply
    202,204.62x = 279,131.85 × 130,619.54
  4. Step 4: Simplify right side
    202,204.62x = 36,460,073,846.35
  5. Step 5: Solve for x
    x = 36,460,073,846.35/202,204.62
  6. Step 6: Final answer
    x = 180,312.76

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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.