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Finding the Fourth Proportional to 376.12, 561.40 and 353.04

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Solution

The fourth proportional to 376.12, 561.40 and 353.04 is: 526.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.12 : 561.40 = 353.04 : x
  2. Step 2: Convert to fraction form
    376.12/561.40 = 353.04/x
  3. Step 3: Cross multiply
    376.12x = 561.40 × 353.04
  4. Step 4: Simplify right side
    376.12x = 198,196.66
  5. Step 5: Solve for x
    x = 198,196.66/376.12
  6. Step 6: Final answer
    x = 526.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.