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Finding the Fourth Proportional to 373.81, 561.35 and 230.44

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Solution

The fourth proportional to 373.81, 561.35 and 230.44 is: 346.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.81 : 561.35 = 230.44 : x
  2. Step 2: Convert to fraction form
    373.81/561.35 = 230.44/x
  3. Step 3: Cross multiply
    373.81x = 561.35 × 230.44
  4. Step 4: Simplify right side
    373.81x = 129,354.94
  5. Step 5: Solve for x
    x = 129,354.94/373.81
  6. Step 6: Final answer
    x = 346.05

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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.