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Finding the Fourth Proportional to 202,201.96, 279,039.66 and 111,559

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Solution

The fourth proportional to 202,201.96, 279,039.66 and 111,559 is: 153,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,201.96 : 279,039.66 = 111,559 : x
  2. Step 2: Convert to fraction form
    202,201.96/279,039.66 = 111,559/x
  3. Step 3: Cross multiply
    202,201.96x = 279,039.66 × 111,559
  4. Step 4: Simplify right side
    202,201.96x = 31,129,385,429.94
  5. Step 5: Solve for x
    x = 31,129,385,429.94/202,201.96
  6. Step 6: Final answer
    x = 153,951.95

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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.