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Finding the Fourth Proportional to 340.65, 510.97 and 238.13

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Solution

The fourth proportional to 340.65, 510.97 and 238.13 is: 357.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.65 : 510.97 = 238.13 : x
  2. Step 2: Convert to fraction form
    340.65/510.97 = 238.13/x
  3. Step 3: Cross multiply
    340.65x = 510.97 × 238.13
  4. Step 4: Simplify right side
    340.65x = 121,675.41
  5. Step 5: Solve for x
    x = 121,675.41/340.65
  6. Step 6: Final answer
    x = 357.19

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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.