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Finding the Fourth Proportional to 348.92, 524.21 and 204.74

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Solution

The fourth proportional to 348.92, 524.21 and 204.74 is: 307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.92 : 524.21 = 204.74 : x
  2. Step 2: Convert to fraction form
    348.92/524.21 = 204.74/x
  3. Step 3: Cross multiply
    348.92x = 524.21 × 204.74
  4. Step 4: Simplify right side
    348.92x = 107,326.76
  5. Step 5: Solve for x
    x = 107,326.76/348.92
  6. Step 6: Final answer
    x = 307.60

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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.