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Finding the Fourth Proportional to 253.51, 350.12 and 250.09

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Solution

The fourth proportional to 253.51, 350.12 and 250.09 is: 345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.51 : 350.12 = 250.09 : x
  2. Step 2: Convert to fraction form
    253.51/350.12 = 250.09/x
  3. Step 3: Cross multiply
    253.51x = 350.12 × 250.09
  4. Step 4: Simplify right side
    253.51x = 87,561.51
  5. Step 5: Solve for x
    x = 87,561.51/253.51
  6. Step 6: Final answer
    x = 345.40

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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.