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Finding the Fourth Proportional to 248.59, 342.91 and 230.99

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Solution

The fourth proportional to 248.59, 342.91 and 230.99 is: 318.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.59 : 342.91 = 230.99 : x
  2. Step 2: Convert to fraction form
    248.59/342.91 = 230.99/x
  3. Step 3: Cross multiply
    248.59x = 342.91 × 230.99
  4. Step 4: Simplify right side
    248.59x = 79,208.32
  5. Step 5: Solve for x
    x = 79,208.32/248.59
  6. Step 6: Final answer
    x = 318.63

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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.