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Finding the Fourth Proportional to 202,370.54, 279,264.11 and 111,724.65

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Solution

The fourth proportional to 202,370.54, 279,264.11 and 111,724.65 is: 154,176.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,370.54 : 279,264.11 = 111,724.65 : x
  2. Step 2: Convert to fraction form
    202,370.54/279,264.11 = 111,724.65/x
  3. Step 3: Cross multiply
    202,370.54x = 279,264.11 × 111,724.65
  4. Step 4: Simplify right side
    202,370.54x = 31,200,684,388.69
  5. Step 5: Solve for x
    x = 31,200,684,388.69/202,370.54
  6. Step 6: Final answer
    x = 154,176.02

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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.