Home / 245,212.92-338,425.29-137,783.16

Finding the Fourth Proportional to 245,212.92, 338,425.29 and 137,783.16

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Solution

The fourth proportional to 245,212.92, 338,425.29 and 137,783.16 is: 190,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,212.92 : 338,425.29 = 137,783.16 : x
  2. Step 2: Convert to fraction form
    245,212.92/338,425.29 = 137,783.16/x
  3. Step 3: Cross multiply
    245,212.92x = 338,425.29 × 137,783.16
  4. Step 4: Simplify right side
    245,212.92x = 46,629,305,880.12
  5. Step 5: Solve for x
    x = 46,629,305,880.12/245,212.92
  6. Step 6: Final answer
    x = 190,158.44

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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.