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Finding the Fourth Proportional to 246.81, 370.23 and 64.21

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Solution

The fourth proportional to 246.81, 370.23 and 64.21 is: 96.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.81 : 370.23 = 64.21 : x
  2. Step 2: Convert to fraction form
    246.81/370.23 = 64.21/x
  3. Step 3: Cross multiply
    246.81x = 370.23 × 64.21
  4. Step 4: Simplify right side
    246.81x = 23,772.47
  5. Step 5: Solve for x
    x = 23,772.47/246.81
  6. Step 6: Final answer
    x = 96.32

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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.