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Finding the Fourth Proportional to 441.30, 662.02 and 148.76

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Solution

The fourth proportional to 441.30, 662.02 and 148.76 is: 223.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.30 : 662.02 = 148.76 : x
  2. Step 2: Convert to fraction form
    441.30/662.02 = 148.76/x
  3. Step 3: Cross multiply
    441.30x = 662.02 × 148.76
  4. Step 4: Simplify right side
    441.30x = 98,482.10
  5. Step 5: Solve for x
    x = 98,482.10/441.30
  6. Step 6: Final answer
    x = 223.16

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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.