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Finding the Fourth Proportional to 202,487.64, 279,435.90 and 117,604.70

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Solution

The fourth proportional to 202,487.64, 279,435.90 and 117,604.70 is: 162,296.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,487.64 : 279,435.90 = 117,604.70 : x
  2. Step 2: Convert to fraction form
    202,487.64/279,435.90 = 117,604.70/x
  3. Step 3: Cross multiply
    202,487.64x = 279,435.90 × 117,604.70
  4. Step 4: Simplify right side
    202,487.64x = 32,862,975,188.73
  5. Step 5: Solve for x
    x = 32,862,975,188.73/202,487.64
  6. Step 6: Final answer
    x = 162,296.20

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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.