Home / 245,310.27-338,556.21-136,425.45

Finding the Fourth Proportional to 245,310.27, 338,556.21 and 136,425.45

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Solution

The fourth proportional to 245,310.27, 338,556.21 and 136,425.45 is: 188,282.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,310.27 : 338,556.21 = 136,425.45 : x
  2. Step 2: Convert to fraction form
    245,310.27/338,556.21 = 136,425.45/x
  3. Step 3: Cross multiply
    245,310.27x = 338,556.21 × 136,425.45
  4. Step 4: Simplify right side
    245,310.27x = 46,187,683,299.54
  5. Step 5: Solve for x
    x = 46,187,683,299.54/245,310.27
  6. Step 6: Final answer
    x = 188,282.71

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1.5x scale

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.