Home / 245,320.41-338,551.77-137,890.11

Finding the Fourth Proportional to 245,320.41, 338,551.77 and 137,890.11

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Solution

The fourth proportional to 245,320.41, 338,551.77 and 137,890.11 is: 190,293.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,320.41 : 338,551.77 = 137,890.11 : x
  2. Step 2: Convert to fraction form
    245,320.41/338,551.77 = 137,890.11/x
  3. Step 3: Cross multiply
    245,320.41x = 338,551.77 × 137,890.11
  4. Step 4: Simplify right side
    245,320.41x = 46,682,940,805.99
  5. Step 5: Solve for x
    x = 46,682,940,805.99/245,320.41
  6. Step 6: Final answer
    x = 190,293.75

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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.