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Finding the Fourth Proportional to 416.32, 624.16 and 294.56

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Solution

The fourth proportional to 416.32, 624.16 and 294.56 is: 441.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.32 : 624.16 = 294.56 : x
  2. Step 2: Convert to fraction form
    416.32/624.16 = 294.56/x
  3. Step 3: Cross multiply
    416.32x = 624.16 × 294.56
  4. Step 4: Simplify right side
    416.32x = 183,852.57
  5. Step 5: Solve for x
    x = 183,852.57/416.32
  6. Step 6: Final answer
    x = 441.61

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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.