Home / 245,789.46-339,163.07-138,357.54

Finding the Fourth Proportional to 245,789.46, 339,163.07 and 138,357.54

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Solution

The fourth proportional to 245,789.46, 339,163.07 and 138,357.54 is: 190,918.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,789.46 : 339,163.07 = 138,357.54 : x
  2. Step 2: Convert to fraction form
    245,789.46/339,163.07 = 138,357.54/x
  3. Step 3: Cross multiply
    245,789.46x = 339,163.07 × 138,357.54
  4. Step 4: Simplify right side
    245,789.46x = 46,925,767,332.26
  5. Step 5: Solve for x
    x = 46,925,767,332.26/245,789.46
  6. Step 6: Final answer
    x = 190,918.55

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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.