Home / 305,788.27-421,993.47-169,834.81

Finding the Fourth Proportional to 305,788.27, 421,993.47 and 169,834.81

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Solution

The fourth proportional to 305,788.27, 421,993.47 and 169,834.81 is: 234,375.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,788.27 : 421,993.47 = 169,834.81 : x
  2. Step 2: Convert to fraction form
    305,788.27/421,993.47 = 169,834.81/x
  3. Step 3: Cross multiply
    305,788.27x = 421,993.47 × 169,834.81
  4. Step 4: Simplify right side
    305,788.27x = 71,669,180,798.69
  5. Step 5: Solve for x
    x = 71,669,180,798.69/305,788.27
  6. Step 6: Final answer
    x = 234,375.18

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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.