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Finding the Fourth Proportional to 376.21, 560.45 and 366.67

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Solution

The fourth proportional to 376.21, 560.45 and 366.67 is: 546.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.21 : 560.45 = 366.67 : x
  2. Step 2: Convert to fraction form
    376.21/560.45 = 366.67/x
  3. Step 3: Cross multiply
    376.21x = 560.45 × 366.67
  4. Step 4: Simplify right side
    376.21x = 205,500.20
  5. Step 5: Solve for x
    x = 205,500.20/376.21
  6. Step 6: Final answer
    x = 546.24

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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.