Home / 286,121.96-394,843.38-158,802.92

Finding the Fourth Proportional to 286,121.96, 394,843.38 and 158,802.92

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Solution

The fourth proportional to 286,121.96, 394,843.38 and 158,802.92 is: 219,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,121.96 : 394,843.38 = 158,802.92 : x
  2. Step 2: Convert to fraction form
    286,121.96/394,843.38 = 158,802.92/x
  3. Step 3: Cross multiply
    286,121.96x = 394,843.38 × 158,802.92
  4. Step 4: Simplify right side
    286,121.96x = 62,702,281,686.67
  5. Step 5: Solve for x
    x = 62,702,281,686.67/286,121.96
  6. Step 6: Final answer
    x = 219,145.30

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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.