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Finding the Fourth Proportional to 466.69, 700.11 and 380.78

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Solution

The fourth proportional to 466.69, 700.11 and 380.78 is: 571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.69 : 700.11 = 380.78 : x
  2. Step 2: Convert to fraction form
    466.69/700.11 = 380.78/x
  3. Step 3: Cross multiply
    466.69x = 700.11 × 380.78
  4. Step 4: Simplify right side
    466.69x = 266,587.89
  5. Step 5: Solve for x
    x = 266,587.89/466.69
  6. Step 6: Final answer
    x = 571.24

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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.