Home / 286,143.93-394,787.28-165,269.25

Finding the Fourth Proportional to 286,143.93, 394,787.28 and 165,269.25

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Solution

The fourth proportional to 286,143.93, 394,787.28 and 165,269.25 is: 228,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,143.93 : 394,787.28 = 165,269.25 : x
  2. Step 2: Convert to fraction form
    286,143.93/394,787.28 = 165,269.25/x
  3. Step 3: Cross multiply
    286,143.93x = 394,787.28 × 165,269.25
  4. Step 4: Simplify right side
    286,143.93x = 65,246,197,675.14
  5. Step 5: Solve for x
    x = 65,246,197,675.14/286,143.93
  6. Step 6: Final answer
    x = 228,018.81

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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.