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Finding the Fourth Proportional to 402,216.80, 603,325.20 and 165,480.80

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Solution

The fourth proportional to 402,216.80, 603,325.20 and 165,480.80 is: 248,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,216.80 : 603,325.20 = 165,480.80 : x
  2. Step 2: Convert to fraction form
    402,216.80/603,325.20 = 165,480.80/x
  3. Step 3: Cross multiply
    402,216.80x = 603,325.20 × 165,480.80
  4. Step 4: Simplify right side
    402,216.80x = 99,838,736,756.16
  5. Step 5: Solve for x
    x = 99,838,736,756.16/402,216.80
  6. Step 6: Final answer
    x = 248,221.20

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