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Finding the Fourth Proportional to 253,018.80, 349,427.40 and 218,863.33

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Solution

The fourth proportional to 253,018.80, 349,427.40 and 218,863.33 is: 302,257.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,018.80 : 349,427.40 = 218,863.33 : x
  2. Step 2: Convert to fraction form
    253,018.80/349,427.40 = 218,863.33/x
  3. Step 3: Cross multiply
    253,018.80x = 349,427.40 × 218,863.33
  4. Step 4: Simplify right side
    253,018.80x = 76,476,844,357.24
  5. Step 5: Solve for x
    x = 76,476,844,357.24/253,018.80
  6. Step 6: Final answer
    x = 302,257.56

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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.