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Finding the Fourth Proportional to 202,318.31, 279,199.29 and 111,674.30

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Solution

The fourth proportional to 202,318.31, 279,199.29 and 111,674.30 is: 154,110.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,318.31 : 279,199.29 = 111,674.30 : x
  2. Step 2: Convert to fraction form
    202,318.31/279,199.29 = 111,674.30/x
  3. Step 3: Cross multiply
    202,318.31x = 279,199.29 × 111,674.30
  4. Step 4: Simplify right side
    202,318.31x = 31,179,383,875.25
  5. Step 5: Solve for x
    x = 31,179,383,875.25/202,318.31
  6. Step 6: Final answer
    x = 154,110.54

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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.