Home / 286,117.86-394,914.36-165,329.28

Finding the Fourth Proportional to 286,117.86, 394,914.36 and 165,329.28

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Solution

The fourth proportional to 286,117.86, 394,914.36 and 165,329.28 is: 228,195.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,117.86 : 394,914.36 = 165,329.28 : x
  2. Step 2: Convert to fraction form
    286,117.86/394,914.36 = 165,329.28/x
  3. Step 3: Cross multiply
    286,117.86x = 394,914.36 × 165,329.28
  4. Step 4: Simplify right side
    286,117.86x = 65,290,906,800.46
  5. Step 5: Solve for x
    x = 65,290,906,800.46/286,117.86
  6. Step 6: Final answer
    x = 228,195.84

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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.