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Finding the Fourth Proportional to 192.76, 265.58 and 159.96

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Solution

The fourth proportional to 192.76, 265.58 and 159.96 is: 220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.76 : 265.58 = 159.96 : x
  2. Step 2: Convert to fraction form
    192.76/265.58 = 159.96/x
  3. Step 3: Cross multiply
    192.76x = 265.58 × 159.96
  4. Step 4: Simplify right side
    192.76x = 42,482.18
  5. Step 5: Solve for x
    x = 42,482.18/192.76
  6. Step 6: Final answer
    x = 220.39

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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.