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Finding the Fourth Proportional to 244.32, 336.96 and 156.84

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Solution

The fourth proportional to 244.32, 336.96 and 156.84 is: 216.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.32 : 336.96 = 156.84 : x
  2. Step 2: Convert to fraction form
    244.32/336.96 = 156.84/x
  3. Step 3: Cross multiply
    244.32x = 336.96 × 156.84
  4. Step 4: Simplify right side
    244.32x = 52,848.81
  5. Step 5: Solve for x
    x = 52,848.81/244.32
  6. Step 6: Final answer
    x = 216.31

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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.