Home / 307,085.82-423,869.67-193,983.90

Finding the Fourth Proportional to 307,085.82, 423,869.67 and 193,983.90

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Solution

The fourth proportional to 307,085.82, 423,869.67 and 193,983.90 is: 267,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,085.82 : 423,869.67 = 193,983.90 : x
  2. Step 2: Convert to fraction form
    307,085.82/423,869.67 = 193,983.90/x
  3. Step 3: Cross multiply
    307,085.82x = 423,869.67 × 193,983.90
  4. Step 4: Simplify right side
    307,085.82x = 82,223,891,678.31
  5. Step 5: Solve for x
    x = 82,223,891,678.31/307,085.82
  6. Step 6: Final answer
    x = 267,755.42

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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.