Home / 245,178.72-338,380.74-137,757.06

Finding the Fourth Proportional to 245,178.72, 338,380.74 and 137,757.06

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Solution

The fourth proportional to 245,178.72, 338,380.74 and 137,757.06 is: 190,123.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,178.72 : 338,380.74 = 137,757.06 : x
  2. Step 2: Convert to fraction form
    245,178.72/338,380.74 = 137,757.06/x
  3. Step 3: Cross multiply
    245,178.72x = 338,380.74 × 137,757.06
  4. Step 4: Simplify right side
    245,178.72x = 46,614,335,903.02
  5. Step 5: Solve for x
    x = 46,614,335,903.02/245,178.72
  6. Step 6: Final answer
    x = 190,123.91

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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.