Home / 245,934.17-339,388.31-138,504.18

Finding the Fourth Proportional to 245,934.17, 339,388.31 and 138,504.18

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Solution

The fourth proportional to 245,934.17, 339,388.31 and 138,504.18 is: 191,135.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,934.17 : 339,388.31 = 138,504.18 : x
  2. Step 2: Convert to fraction form
    245,934.17/339,388.31 = 138,504.18/x
  3. Step 3: Cross multiply
    245,934.17x = 339,388.31 × 138,504.18
  4. Step 4: Simplify right side
    245,934.17x = 47,006,699,578.14
  5. Step 5: Solve for x
    x = 47,006,699,578.14/245,934.17
  6. Step 6: Final answer
    x = 191,135.29

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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.