Home / 286,010.87-394,719.51-156,974.28

Finding the Fourth Proportional to 286,010.87, 394,719.51 and 156,974.28

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Solution

The fourth proportional to 286,010.87, 394,719.51 and 156,974.28 is: 216,637.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,010.87 : 394,719.51 = 156,974.28 : x
  2. Step 2: Convert to fraction form
    286,010.87/394,719.51 = 156,974.28/x
  3. Step 3: Cross multiply
    286,010.87x = 394,719.51 × 156,974.28
  4. Step 4: Simplify right side
    286,010.87x = 61,960,810,884.20
  5. Step 5: Solve for x
    x = 61,960,810,884.20/286,010.87
  6. Step 6: Final answer
    x = 216,637.96

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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.