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Finding the Fourth Proportional to 340.91, 510.70 and 225

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Solution

The fourth proportional to 340.91, 510.70 and 225 is: 337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.91 : 510.70 = 225 : x
  2. Step 2: Convert to fraction form
    340.91/510.70 = 225/x
  3. Step 3: Cross multiply
    340.91x = 510.70 × 225
  4. Step 4: Simplify right side
    340.91x = 114,906.38
  5. Step 5: Solve for x
    x = 114,906.38/340.91
  6. Step 6: Final answer
    x = 337.06

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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.