Home / 286,313.38-395,128.86-158,997.17

Finding the Fourth Proportional to 286,313.38, 395,128.86 and 158,997.17

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Solution

The fourth proportional to 286,313.38, 395,128.86 and 158,997.17 is: 219,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,313.38 : 395,128.86 = 158,997.17 : x
  2. Step 2: Convert to fraction form
    286,313.38/395,128.86 = 158,997.17/x
  3. Step 3: Cross multiply
    286,313.38x = 395,128.86 × 158,997.17
  4. Step 4: Simplify right side
    286,313.38x = 62,824,370,525.33
  5. Step 5: Solve for x
    x = 62,824,370,525.33/286,313.38
  6. Step 6: Final answer
    x = 219,425.20

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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.