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Finding the Fourth Proportional to 467.19, 700.78 and 440.46

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Solution

The fourth proportional to 467.19, 700.78 and 440.46 is: 660.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.19 : 700.78 = 440.46 : x
  2. Step 2: Convert to fraction form
    467.19/700.78 = 440.46/x
  3. Step 3: Cross multiply
    467.19x = 700.78 × 440.46
  4. Step 4: Simplify right side
    467.19x = 308,660.95
  5. Step 5: Solve for x
    x = 308,660.95/467.19
  6. Step 6: Final answer
    x = 660.68

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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.