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Finding the Fourth Proportional to 622.66, 934.08 and 349.33

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Solution

The fourth proportional to 622.66, 934.08 and 349.33 is: 524.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.66 : 934.08 = 349.33 : x
  2. Step 2: Convert to fraction form
    622.66/934.08 = 349.33/x
  3. Step 3: Cross multiply
    622.66x = 934.08 × 349.33
  4. Step 4: Simplify right side
    622.66x = 326,302.17
  5. Step 5: Solve for x
    x = 326,302.17/622.66
  6. Step 6: Final answer
    x = 524.05

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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.