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Finding the Fourth Proportional to 286,366.92, 395,138.82 and 165,519.37

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Solution

The fourth proportional to 286,366.92, 395,138.82 and 165,519.37 is: 228,389.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,366.92 : 395,138.82 = 165,519.37 : x
  2. Step 2: Convert to fraction form
    286,366.92/395,138.82 = 165,519.37/x
  3. Step 3: Cross multiply
    286,366.92x = 395,138.82 × 165,519.37
  4. Step 4: Simplify right side
    286,366.92x = 65,403,128,548.94
  5. Step 5: Solve for x
    x = 65,403,128,548.94/286,366.92
  6. Step 6: Final answer
    x = 228,389.26

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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.