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Finding the Fourth Proportional to 202,230.25, 279,077.75 and 112,806.25

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Solution

The fourth proportional to 202,230.25, 279,077.75 and 112,806.25 is: 155,672.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,230.25 : 279,077.75 = 112,806.25 : x
  2. Step 2: Convert to fraction form
    202,230.25/279,077.75 = 112,806.25/x
  3. Step 3: Cross multiply
    202,230.25x = 279,077.75 × 112,806.25
  4. Step 4: Simplify right side
    202,230.25x = 31,481,714,435.94
  5. Step 5: Solve for x
    x = 31,481,714,435.94/202,230.25
  6. Step 6: Final answer
    x = 155,672.63

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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.