Home / 303,100.25-418,421.81-175,729.37

Finding the Fourth Proportional to 303,100.25, 418,421.81 and 175,729.37

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Solution

The fourth proportional to 303,100.25, 418,421.81 and 175,729.37 is: 242,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,100.25 : 418,421.81 = 175,729.37 : x
  2. Step 2: Convert to fraction form
    303,100.25/418,421.81 = 175,729.37/x
  3. Step 3: Cross multiply
    303,100.25x = 418,421.81 × 175,729.37
  4. Step 4: Simplify right side
    303,100.25x = 73,529,000,458.83
  5. Step 5: Solve for x
    x = 73,529,000,458.83/303,100.25
  6. Step 6: Final answer
    x = 242,589.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.