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Finding the Fourth Proportional to 202,245.28, 279,098.44 and 112,821.28

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Solution

The fourth proportional to 202,245.28, 279,098.44 and 112,821.28 is: 155,693.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,245.28 : 279,098.44 = 112,821.28 : x
  2. Step 2: Convert to fraction form
    202,245.28/279,098.44 = 112,821.28/x
  3. Step 3: Cross multiply
    202,245.28x = 279,098.44 × 112,821.28
  4. Step 4: Simplify right side
    202,245.28x = 31,488,243,246.80
  5. Step 5: Solve for x
    x = 31,488,243,246.80/202,245.28
  6. Step 6: Final answer
    x = 155,693.34

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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.