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Finding the Fourth Proportional to 373.86, 561.06 and 300.96

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Solution

The fourth proportional to 373.86, 561.06 and 300.96 is: 451.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.86 : 561.06 = 300.96 : x
  2. Step 2: Convert to fraction form
    373.86/561.06 = 300.96/x
  3. Step 3: Cross multiply
    373.86x = 561.06 × 300.96
  4. Step 4: Simplify right side
    373.86x = 168,856.62
  5. Step 5: Solve for x
    x = 168,856.62/373.86
  6. Step 6: Final answer
    x = 451.66

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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.