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Finding the Fourth Proportional to 373.79, 561.30 and 230.42

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Solution

The fourth proportional to 373.79, 561.30 and 230.42 is: 346.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.79 : 561.30 = 230.42 : x
  2. Step 2: Convert to fraction form
    373.79/561.30 = 230.42/x
  3. Step 3: Cross multiply
    373.79x = 561.30 × 230.42
  4. Step 4: Simplify right side
    373.79x = 129,333.59
  5. Step 5: Solve for x
    x = 129,333.59/373.79
  6. Step 6: Final answer
    x = 346.01

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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.