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Finding the Fourth Proportional to 202,486.25, 279,431.03 and 113,062.25

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Solution

The fourth proportional to 202,486.25, 279,431.03 and 113,062.25 is: 156,025.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,486.25 : 279,431.03 = 113,062.25 : x
  2. Step 2: Convert to fraction form
    202,486.25/279,431.03 = 113,062.25/x
  3. Step 3: Cross multiply
    202,486.25x = 279,431.03 × 113,062.25
  4. Step 4: Simplify right side
    202,486.25x = 31,593,100,971.62
  5. Step 5: Solve for x
    x = 31,593,100,971.62/202,486.25
  6. Step 6: Final answer
    x = 156,025.91

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1.5x scale

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.