Home / 245,150.30-338,305.37-137,718.03

Finding the Fourth Proportional to 245,150.30, 338,305.37 and 137,718.03

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Solution

The fourth proportional to 245,150.30, 338,305.37 and 137,718.03 is: 190,049.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,150.30 : 338,305.37 = 137,718.03 : x
  2. Step 2: Convert to fraction form
    245,150.30/338,305.37 = 137,718.03/x
  3. Step 3: Cross multiply
    245,150.30x = 338,305.37 × 137,718.03
  4. Step 4: Simplify right side
    245,150.30x = 46,590,749,094.82
  5. Step 5: Solve for x
    x = 46,590,749,094.82/245,150.30
  6. Step 6: Final answer
    x = 190,049.73

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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.