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Finding the Fourth Proportional to 340.06, 510.09 and 218.41

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Solution

The fourth proportional to 340.06, 510.09 and 218.41 is: 327.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.06 : 510.09 = 218.41 : x
  2. Step 2: Convert to fraction form
    340.06/510.09 = 218.41/x
  3. Step 3: Cross multiply
    340.06x = 510.09 × 218.41
  4. Step 4: Simplify right side
    340.06x = 111,407.89
  5. Step 5: Solve for x
    x = 111,407.89/340.06
  6. Step 6: Final answer
    x = 327.61

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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.