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Finding the Fourth Proportional to 244.02, 336.69 and 156.66

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Solution

The fourth proportional to 244.02, 336.69 and 156.66 is: 216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.02 : 336.69 = 156.66 : x
  2. Step 2: Convert to fraction form
    244.02/336.69 = 156.66/x
  3. Step 3: Cross multiply
    244.02x = 336.69 × 156.66
  4. Step 4: Simplify right side
    244.02x = 52,745.86
  5. Step 5: Solve for x
    x = 52,745.86/244.02
  6. Step 6: Final answer
    x = 216.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.