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Finding the Fourth Proportional to 235,922, 325,572.36 and 129,938

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Solution

The fourth proportional to 235,922, 325,572.36 and 129,938 is: 179,314.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,922 : 325,572.36 = 129,938 : x
  2. Step 2: Convert to fraction form
    235,922/325,572.36 = 129,938/x
  3. Step 3: Cross multiply
    235,922x = 325,572.36 × 129,938
  4. Step 4: Simplify right side
    235,922x = 42,304,221,313.68
  5. Step 5: Solve for x
    x = 42,304,221,313.68/235,922
  6. Step 6: Final answer
    x = 179,314.44

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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.