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Finding the Fourth Proportional to 374.94, 561.88 and 276.67

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Solution

The fourth proportional to 374.94, 561.88 and 276.67 is: 414.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.94 : 561.88 = 276.67 : x
  2. Step 2: Convert to fraction form
    374.94/561.88 = 276.67/x
  3. Step 3: Cross multiply
    374.94x = 561.88 × 276.67
  4. Step 4: Simplify right side
    374.94x = 155,453.24
  5. Step 5: Solve for x
    x = 155,453.24/374.94
  6. Step 6: Final answer
    x = 414.61

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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.