Home / 331,366.38-457,298.55-188,139.75

Finding the Fourth Proportional to 331,366.38, 457,298.55 and 188,139.75

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Solution

The fourth proportional to 331,366.38, 457,298.55 and 188,139.75 is: 259,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,366.38 : 457,298.55 = 188,139.75 : x
  2. Step 2: Convert to fraction form
    331,366.38/457,298.55 = 188,139.75/x
  3. Step 3: Cross multiply
    331,366.38x = 457,298.55 × 188,139.75
  4. Step 4: Simplify right side
    331,366.38x = 86,036,034,872.36
  5. Step 5: Solve for x
    x = 86,036,034,872.36/331,366.38
  6. Step 6: Final answer
    x = 259,640.21

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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.