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Finding the Fourth Proportional to 202,366.89, 279,267.30 and 111,721.23

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Solution

The fourth proportional to 202,366.89, 279,267.30 and 111,721.23 is: 154,175.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,366.89 : 279,267.30 = 111,721.23 : x
  2. Step 2: Convert to fraction form
    202,366.89/279,267.30 = 111,721.23/x
  3. Step 3: Cross multiply
    202,366.89x = 279,267.30 × 111,721.23
  4. Step 4: Simplify right side
    202,366.89x = 31,200,086,254.78
  5. Step 5: Solve for x
    x = 31,200,086,254.78/202,366.89
  6. Step 6: Final answer
    x = 154,175.84

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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.