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Finding the Fourth Proportional to 441.32, 661.36 and 375.98

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Solution

The fourth proportional to 441.32, 661.36 and 375.98 is: 563.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.32 : 661.36 = 375.98 : x
  2. Step 2: Convert to fraction form
    441.32/661.36 = 375.98/x
  3. Step 3: Cross multiply
    441.32x = 661.36 × 375.98
  4. Step 4: Simplify right side
    441.32x = 248,653.89
  5. Step 5: Solve for x
    x = 248,653.89/441.32
  6. Step 6: Final answer
    x = 563.44

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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.