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Finding the Fourth Proportional to 202,648.28, 279,669.11 and 112,002.30

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Solution

The fourth proportional to 202,648.28, 279,669.11 and 112,002.30 is: 154,571.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,648.28 : 279,669.11 = 112,002.30 : x
  2. Step 2: Convert to fraction form
    202,648.28/279,669.11 = 112,002.30/x
  3. Step 3: Cross multiply
    202,648.28x = 279,669.11 × 112,002.30
  4. Step 4: Simplify right side
    202,648.28x = 31,323,581,600.60
  5. Step 5: Solve for x
    x = 31,323,581,600.60/202,648.28
  6. Step 6: Final answer
    x = 154,571.17

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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.