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Finding the Fourth Proportional to 253,917.40, 350,246.82 and 163,391.08

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Solution

The fourth proportional to 253,917.40, 350,246.82 and 163,391.08 is: 225,377.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,917.40 : 350,246.82 = 163,391.08 : x
  2. Step 2: Convert to fraction form
    253,917.40/350,246.82 = 163,391.08/x
  3. Step 3: Cross multiply
    253,917.40x = 350,246.82 × 163,391.08
  4. Step 4: Simplify right side
    253,917.40x = 57,227,206,186.37
  5. Step 5: Solve for x
    x = 57,227,206,186.37/253,917.40
  6. Step 6: Final answer
    x = 225,377.25

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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.