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Finding the Fourth Proportional to 202,199.55, 279,040.72 and 111,556.70

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Solution

The fourth proportional to 202,199.55, 279,040.72 and 111,556.70 is: 153,951.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,199.55 : 279,040.72 = 111,556.70 : x
  2. Step 2: Convert to fraction form
    202,199.55/279,040.72 = 111,556.70/x
  3. Step 3: Cross multiply
    202,199.55x = 279,040.72 × 111,556.70
  4. Step 4: Simplify right side
    202,199.55x = 31,128,861,888.82
  5. Step 5: Solve for x
    x = 31,128,861,888.82/202,199.55
  6. Step 6: Final answer
    x = 153,951.19

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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.