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Finding the Fourth Proportional to 466.70, 699.99 and 142.10

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Solution

The fourth proportional to 466.70, 699.99 and 142.10 is: 213.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.70 : 699.99 = 142.10 : x
  2. Step 2: Convert to fraction form
    466.70/699.99 = 142.10/x
  3. Step 3: Cross multiply
    466.70x = 699.99 × 142.10
  4. Step 4: Simplify right side
    466.70x = 99,468.58
  5. Step 5: Solve for x
    x = 99,468.58/466.70
  6. Step 6: Final answer
    x = 213.13

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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.