Home / 245,134.28-338,248.46-137,683.73

Finding the Fourth Proportional to 245,134.28, 338,248.46 and 137,683.73

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Solution

The fourth proportional to 245,134.28, 338,248.46 and 137,683.73 is: 189,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,134.28 : 338,248.46 = 137,683.73 : x
  2. Step 2: Convert to fraction form
    245,134.28/338,248.46 = 137,683.73/x
  3. Step 3: Cross multiply
    245,134.28x = 338,248.46 × 137,683.73
  4. Step 4: Simplify right side
    245,134.28x = 46,571,307,259.89
  5. Step 5: Solve for x
    x = 46,571,307,259.89/245,134.28
  6. Step 6: Final answer
    x = 189,982.85

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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.