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Finding the Fourth Proportional to 289,079.20, 433,510.92 and 99,486.52

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Solution

The fourth proportional to 289,079.20, 433,510.92 and 99,486.52 is: 149,192.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,079.20 : 433,510.92 = 99,486.52 : x
  2. Step 2: Convert to fraction form
    289,079.20/433,510.92 = 99,486.52/x
  3. Step 3: Cross multiply
    289,079.20x = 433,510.92 × 99,486.52
  4. Step 4: Simplify right side
    289,079.20x = 43,128,492,812.80
  5. Step 5: Solve for x
    x = 43,128,492,812.80/289,079.20
  6. Step 6: Final answer
    x = 149,192.65

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