Home / 245,077.06-338,203.74-137,639.38

Finding the Fourth Proportional to 245,077.06, 338,203.74 and 137,639.38

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Solution

The fourth proportional to 245,077.06, 338,203.74 and 137,639.38 is: 189,940.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,077.06 : 338,203.74 = 137,639.38 : x
  2. Step 2: Convert to fraction form
    245,077.06/338,203.74 = 137,639.38/x
  3. Step 3: Cross multiply
    245,077.06x = 338,203.74 × 137,639.38
  4. Step 4: Simplify right side
    245,077.06x = 46,550,153,087.28
  5. Step 5: Solve for x
    x = 46,550,153,087.28/245,077.06
  6. Step 6: Final answer
    x = 189,940.88

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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.