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Finding the Fourth Proportional to 416.30, 574.50 and 250.48

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Solution

The fourth proportional to 416.30, 574.50 and 250.48 is: 345.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.30 : 574.50 = 250.48 : x
  2. Step 2: Convert to fraction form
    416.30/574.50 = 250.48/x
  3. Step 3: Cross multiply
    416.30x = 574.50 × 250.48
  4. Step 4: Simplify right side
    416.30x = 143,900.76
  5. Step 5: Solve for x
    x = 143,900.76/416.30
  6. Step 6: Final answer
    x = 345.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.