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Finding the Fourth Proportional to 569.61, 854.30 and 158.79

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Solution

The fourth proportional to 569.61, 854.30 and 158.79 is: 238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.61 : 854.30 = 158.79 : x
  2. Step 2: Convert to fraction form
    569.61/854.30 = 158.79/x
  3. Step 3: Cross multiply
    569.61x = 854.30 × 158.79
  4. Step 4: Simplify right side
    569.61x = 135,649.80
  5. Step 5: Solve for x
    x = 135,649.80/569.61
  6. Step 6: Final answer
    x = 238.15

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