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Finding the Fourth Proportional to 202,215.60, 279,054.83 and 111,575.39

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Solution

The fourth proportional to 202,215.60, 279,054.83 and 111,575.39 is: 153,972.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,215.60 : 279,054.83 = 111,575.39 : x
  2. Step 2: Convert to fraction form
    202,215.60/279,054.83 = 111,575.39/x
  3. Step 3: Cross multiply
    202,215.60x = 279,054.83 × 111,575.39
  4. Step 4: Simplify right side
    202,215.60x = 31,135,650,372.30
  5. Step 5: Solve for x
    x = 31,135,650,372.30/202,215.60
  6. Step 6: Final answer
    x = 153,972.54

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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.