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Finding the Fourth Proportional to 202,555.35, 279,529.31 and 111,913.41

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Solution

The fourth proportional to 202,555.35, 279,529.31 and 111,913.41 is: 154,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,555.35 : 279,529.31 = 111,913.41 : x
  2. Step 2: Convert to fraction form
    202,555.35/279,529.31 = 111,913.41/x
  3. Step 3: Cross multiply
    202,555.35x = 279,529.31 × 111,913.41
  4. Step 4: Simplify right side
    202,555.35x = 31,283,078,277.05
  5. Step 5: Solve for x
    x = 31,283,078,277.05/202,555.35
  6. Step 6: Final answer
    x = 154,442.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.