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Finding the Fourth Proportional to 466.72, 699.88 and 142

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Solution

The fourth proportional to 466.72, 699.88 and 142 is: 212.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.72 : 699.88 = 142 : x
  2. Step 2: Convert to fraction form
    466.72/699.88 = 142/x
  3. Step 3: Cross multiply
    466.72x = 699.88 × 142
  4. Step 4: Simplify right side
    466.72x = 99,382.96
  5. Step 5: Solve for x
    x = 99,382.96/466.72
  6. Step 6: Final answer
    x = 212.94

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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.