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Finding the Fourth Proportional to 153.12, 229.70 and 44.91

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Solution

The fourth proportional to 153.12, 229.70 and 44.91 is: 67.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.12 : 229.70 = 44.91 : x
  2. Step 2: Convert to fraction form
    153.12/229.70 = 44.91/x
  3. Step 3: Cross multiply
    153.12x = 229.70 × 44.91
  4. Step 4: Simplify right side
    153.12x = 10,315.83
  5. Step 5: Solve for x
    x = 10,315.83/153.12
  6. Step 6: Final answer
    x = 67.37

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