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Finding the Fourth Proportional to 624.09, 934.15 and 349.35

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Solution

The fourth proportional to 624.09, 934.15 and 349.35 is: 522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.09 : 934.15 = 349.35 : x
  2. Step 2: Convert to fraction form
    624.09/934.15 = 349.35/x
  3. Step 3: Cross multiply
    624.09x = 934.15 × 349.35
  4. Step 4: Simplify right side
    624.09x = 326,345.30
  5. Step 5: Solve for x
    x = 326,345.30/624.09
  6. Step 6: Final answer
    x = 522.91

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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.