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Finding the Fourth Proportional to 202,194.59, 279,029.45 and 111,550.50

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Solution

The fourth proportional to 202,194.59, 279,029.45 and 111,550.50 is: 153,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,194.59 : 279,029.45 = 111,550.50 : x
  2. Step 2: Convert to fraction form
    202,194.59/279,029.45 = 111,550.50/x
  3. Step 3: Cross multiply
    202,194.59x = 279,029.45 × 111,550.50
  4. Step 4: Simplify right side
    202,194.59x = 31,125,874,941.10
  5. Step 5: Solve for x
    x = 31,125,874,941.10/202,194.59
  6. Step 6: Final answer
    x = 153,940.20

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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.