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Finding the Fourth Proportional to 415.07, 622.67 and 155.06

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Solution

The fourth proportional to 415.07, 622.67 and 155.06 is: 232.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.07 : 622.67 = 155.06 : x
  2. Step 2: Convert to fraction form
    415.07/622.67 = 155.06/x
  3. Step 3: Cross multiply
    415.07x = 622.67 × 155.06
  4. Step 4: Simplify right side
    415.07x = 96,547.32
  5. Step 5: Solve for x
    x = 96,547.32/415.07
  6. Step 6: Final answer
    x = 232.61

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