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Finding the Fourth Proportional to 225,402.50, 311,065.17 and 124,800.50

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Solution

The fourth proportional to 225,402.50, 311,065.17 and 124,800.50 is: 172,230.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,402.50 : 311,065.17 = 124,800.50 : x
  2. Step 2: Convert to fraction form
    225,402.50/311,065.17 = 124,800.50/x
  3. Step 3: Cross multiply
    225,402.50x = 311,065.17 × 124,800.50
  4. Step 4: Simplify right side
    225,402.50x = 38,821,088,748.59
  5. Step 5: Solve for x
    x = 38,821,088,748.59/225,402.50
  6. Step 6: Final answer
    x = 172,230.07

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