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Finding the Fourth Proportional to 202,372.36, 279,272.28 and 111,728.41

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Solution

The fourth proportional to 202,372.36, 279,272.28 and 111,728.41 is: 154,184.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,372.36 : 279,272.28 = 111,728.41 : x
  2. Step 2: Convert to fraction form
    202,372.36/279,272.28 = 111,728.41/x
  3. Step 3: Cross multiply
    202,372.36x = 279,272.28 × 111,728.41
  4. Step 4: Simplify right side
    202,372.36x = 31,202,647,801.47
  5. Step 5: Solve for x
    x = 31,202,647,801.47/202,372.36
  6. Step 6: Final answer
    x = 154,184.34

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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.