Home / 286,455.43-395,311.28-157,391.83

Finding the Fourth Proportional to 286,455.43, 395,311.28 and 157,391.83

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Solution

The fourth proportional to 286,455.43, 395,311.28 and 157,391.83 is: 217,202.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,455.43 : 395,311.28 = 157,391.83 : x
  2. Step 2: Convert to fraction form
    286,455.43/395,311.28 = 157,391.83/x
  3. Step 3: Cross multiply
    286,455.43x = 395,311.28 × 157,391.83
  4. Step 4: Simplify right side
    286,455.43x = 62,218,765,778.84
  5. Step 5: Solve for x
    x = 62,218,765,778.84/286,455.43
  6. Step 6: Final answer
    x = 217,202.26

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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.