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Finding the Fourth Proportional to 434.99, 652.78 and 161.30

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Solution

The fourth proportional to 434.99, 652.78 and 161.30 is: 242.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.99 : 652.78 = 161.30 : x
  2. Step 2: Convert to fraction form
    434.99/652.78 = 161.30/x
  3. Step 3: Cross multiply
    434.99x = 652.78 × 161.30
  4. Step 4: Simplify right side
    434.99x = 105,293.41
  5. Step 5: Solve for x
    x = 105,293.41/434.99
  6. Step 6: Final answer
    x = 242.06

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