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Finding the Fourth Proportional to 268.64, 370.65 and 158.04

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Solution

The fourth proportional to 268.64, 370.65 and 158.04 is: 218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.64 : 370.65 = 158.04 : x
  2. Step 2: Convert to fraction form
    268.64/370.65 = 158.04/x
  3. Step 3: Cross multiply
    268.64x = 370.65 × 158.04
  4. Step 4: Simplify right side
    268.64x = 58,577.53
  5. Step 5: Solve for x
    x = 58,577.53/268.64
  6. Step 6: Final answer
    x = 218.06

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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.