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Finding the Fourth Proportional to 508,900.28, 762,187.79 and 242,847.68

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Solution

The fourth proportional to 508,900.28, 762,187.79 and 242,847.68 is: 363,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,900.28 : 762,187.79 = 242,847.68 : x
  2. Step 2: Convert to fraction form
    508,900.28/762,187.79 = 242,847.68/x
  3. Step 3: Cross multiply
    508,900.28x = 762,187.79 × 242,847.68
  4. Step 4: Simplify right side
    508,900.28x = 185,095,533,322.01
  5. Step 5: Solve for x
    x = 185,095,533,322.01/508,900.28
  6. Step 6: Final answer
    x = 363,716.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.