Home / 321,130.49-482,434.11-226,578.56

Finding the Fourth Proportional to 321,130.49, 482,434.11 and 226,578.56

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Solution

The fourth proportional to 321,130.49, 482,434.11 and 226,578.56 is: 340,388.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,130.49 : 482,434.11 = 226,578.56 : x
  2. Step 2: Convert to fraction form
    321,130.49/482,434.11 = 226,578.56/x
  3. Step 3: Cross multiply
    321,130.49x = 482,434.11 × 226,578.56
  4. Step 4: Simplify right side
    321,130.49x = 109,309,223,526.51
  5. Step 5: Solve for x
    x = 109,309,223,526.51/321,130.49
  6. Step 6: Final answer
    x = 340,388.81

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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.