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Finding the Fourth Proportional to 253,467.43, 349,754.12 and 201,915.82

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Solution

The fourth proportional to 253,467.43, 349,754.12 and 201,915.82 is: 278,619.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,467.43 : 349,754.12 = 201,915.82 : x
  2. Step 2: Convert to fraction form
    253,467.43/349,754.12 = 201,915.82/x
  3. Step 3: Cross multiply
    253,467.43x = 349,754.12 × 201,915.82
  4. Step 4: Simplify right side
    253,467.43x = 70,620,890,122.98
  5. Step 5: Solve for x
    x = 70,620,890,122.98/253,467.43
  6. Step 6: Final answer
    x = 278,619.19

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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.