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Finding the Fourth Proportional to 402,884.80, 555,981.30 and 221,610.52

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Solution

The fourth proportional to 402,884.80, 555,981.30 and 221,610.52 is: 305,822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,884.80 : 555,981.30 = 221,610.52 : x
  2. Step 2: Convert to fraction form
    402,884.80/555,981.30 = 221,610.52/x
  3. Step 3: Cross multiply
    402,884.80x = 555,981.30 × 221,610.52
  4. Step 4: Simplify right side
    402,884.80x = 123,211,302,223.37
  5. Step 5: Solve for x
    x = 123,211,302,223.37/402,884.80
  6. Step 6: Final answer
    x = 305,822.67

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