Home / 286,286.19-395,087.00-158,973.63

Finding the Fourth Proportional to 286,286.19, 395,087.00 and 158,973.63

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Solution

The fourth proportional to 286,286.19, 395,087.00 and 158,973.63 is: 219,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,286.19 : 395,087.00 = 158,973.63 : x
  2. Step 2: Convert to fraction form
    286,286.19/395,087.00 = 158,973.63/x
  3. Step 3: Cross multiply
    286,286.19x = 395,087.00 × 158,973.63
  4. Step 4: Simplify right side
    286,286.19x = 62,808,413,760.94
  5. Step 5: Solve for x
    x = 62,808,413,760.94/286,286.19
  6. Step 6: Final answer
    x = 219,390.30

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Double scale
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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.