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Finding the Fourth Proportional to 376.53, 561.65 and 368.34

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Solution

The fourth proportional to 376.53, 561.65 and 368.34 is: 549.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.53 : 561.65 = 368.34 : x
  2. Step 2: Convert to fraction form
    376.53/561.65 = 368.34/x
  3. Step 3: Cross multiply
    376.53x = 561.65 × 368.34
  4. Step 4: Simplify right side
    376.53x = 206,876.32
  5. Step 5: Solve for x
    x = 206,876.32/376.53
  6. Step 6: Final answer
    x = 549.43

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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.