Home / 245,828.07-339,249.33-138,402.18

Finding the Fourth Proportional to 245,828.07, 339,249.33 and 138,402.18

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Solution

The fourth proportional to 245,828.07, 339,249.33 and 138,402.18 is: 190,998.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,828.07 : 339,249.33 = 138,402.18 : x
  2. Step 2: Convert to fraction form
    245,828.07/339,249.33 = 138,402.18/x
  3. Step 3: Cross multiply
    245,828.07x = 339,249.33 × 138,402.18
  4. Step 4: Simplify right side
    245,828.07x = 46,952,846,835.54
  5. Step 5: Solve for x
    x = 46,952,846,835.54/245,828.07
  6. Step 6: Final answer
    x = 190,998.72

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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.