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Finding the Fourth Proportional to 216,715.91, 299,061.32 and 121,222.98

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Solution

The fourth proportional to 216,715.91, 299,061.32 and 121,222.98 is: 167,284.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,715.91 : 299,061.32 = 121,222.98 : x
  2. Step 2: Convert to fraction form
    216,715.91/299,061.32 = 121,222.98/x
  3. Step 3: Cross multiply
    216,715.91x = 299,061.32 × 121,222.98
  4. Step 4: Simplify right side
    216,715.91x = 36,253,103,807.02
  5. Step 5: Solve for x
    x = 36,253,103,807.02/216,715.91
  6. Step 6: Final answer
    x = 167,284.00

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