Home / 286,286.94-395,088.03-158,974.38

Finding the Fourth Proportional to 286,286.94, 395,088.03 and 158,974.38

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Solution

The fourth proportional to 286,286.94, 395,088.03 and 158,974.38 is: 219,391.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,286.94 : 395,088.03 = 158,974.38 : x
  2. Step 2: Convert to fraction form
    286,286.94/395,088.03 = 158,974.38/x
  3. Step 3: Cross multiply
    286,286.94x = 395,088.03 × 158,974.38
  4. Step 4: Simplify right side
    286,286.94x = 62,808,874,614.67
  5. Step 5: Solve for x
    x = 62,808,874,614.67/286,286.94
  6. Step 6: Final answer
    x = 219,391.34

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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.