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Finding the Fourth Proportional to 462.31, 694 and 188.60

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Solution

The fourth proportional to 462.31, 694 and 188.60 is: 283.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.31 : 694 = 188.60 : x
  2. Step 2: Convert to fraction form
    462.31/694 = 188.60/x
  3. Step 3: Cross multiply
    462.31x = 694 × 188.60
  4. Step 4: Simplify right side
    462.31x = 130,888.40
  5. Step 5: Solve for x
    x = 130,888.40/462.31
  6. Step 6: Final answer
    x = 283.12

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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.