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Finding the Fourth Proportional to 467.36, 700.89 and 386

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Solution

The fourth proportional to 467.36, 700.89 and 386 is: 578.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.36 : 700.89 = 386 : x
  2. Step 2: Convert to fraction form
    467.36/700.89 = 386/x
  3. Step 3: Cross multiply
    467.36x = 700.89 × 386
  4. Step 4: Simplify right side
    467.36x = 270,543.54
  5. Step 5: Solve for x
    x = 270,543.54/467.36
  6. Step 6: Final answer
    x = 578.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.