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Finding the Fourth Proportional to 306.95, 423.09 and 244.58

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Solution

The fourth proportional to 306.95, 423.09 and 244.58 is: 337.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.95 : 423.09 = 244.58 : x
  2. Step 2: Convert to fraction form
    306.95/423.09 = 244.58/x
  3. Step 3: Cross multiply
    306.95x = 423.09 × 244.58
  4. Step 4: Simplify right side
    306.95x = 103,477.24
  5. Step 5: Solve for x
    x = 103,477.24/306.95
  6. Step 6: Final answer
    x = 337.12

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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.