Home / 245,150.05-338,305.03-137,717.77

Finding the Fourth Proportional to 245,150.05, 338,305.03 and 137,717.77

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Solution

The fourth proportional to 245,150.05, 338,305.03 and 137,717.77 is: 190,049.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,150.05 : 338,305.03 = 137,717.77 : x
  2. Step 2: Convert to fraction form
    245,150.05/338,305.03 = 137,717.77/x
  3. Step 3: Cross multiply
    245,150.05x = 338,305.03 × 137,717.77
  4. Step 4: Simplify right side
    245,150.05x = 46,590,614,311.38
  5. Step 5: Solve for x
    x = 46,590,614,311.38/245,150.05
  6. Step 6: Final answer
    x = 190,049.38

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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.