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Finding the Fourth Proportional to 202,193.39, 279,027.80 and 111,549.32

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Solution

The fourth proportional to 202,193.39, 279,027.80 and 111,549.32 is: 153,938.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,193.39 : 279,027.80 = 111,549.32 : x
  2. Step 2: Convert to fraction form
    202,193.39/279,027.80 = 111,549.32/x
  3. Step 3: Cross multiply
    202,193.39x = 279,027.80 × 111,549.32
  4. Step 4: Simplify right side
    202,193.39x = 31,125,361,351.10
  5. Step 5: Solve for x
    x = 31,125,361,351.10/202,193.39
  6. Step 6: Final answer
    x = 153,938.57

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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.