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Finding the Fourth Proportional to 289,764.20, 434,063.10 and 201,117.80

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Solution

The fourth proportional to 289,764.20, 434,063.10 and 201,117.80 is: 301,271.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,764.20 : 434,063.10 = 201,117.80 : x
  2. Step 2: Convert to fraction form
    289,764.20/434,063.10 = 201,117.80/x
  3. Step 3: Cross multiply
    289,764.20x = 434,063.10 × 201,117.80
  4. Step 4: Simplify right side
    289,764.20x = 87,297,815,733.18
  5. Step 5: Solve for x
    x = 87,297,815,733.18/289,764.20
  6. Step 6: Final answer
    x = 301,271.92

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