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Finding the Fourth Proportional to 301.90, 452.99 and 137.34

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Solution

The fourth proportional to 301.90, 452.99 and 137.34 is: 206.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.90 : 452.99 = 137.34 : x
  2. Step 2: Convert to fraction form
    301.90/452.99 = 137.34/x
  3. Step 3: Cross multiply
    301.90x = 452.99 × 137.34
  4. Step 4: Simplify right side
    301.90x = 62,213.65
  5. Step 5: Solve for x
    x = 62,213.65/301.90
  6. Step 6: Final answer
    x = 206.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.