Home / 286,600.96-395,517.36-165,730.60

Finding the Fourth Proportional to 286,600.96, 395,517.36 and 165,730.60

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Solution

The fourth proportional to 286,600.96, 395,517.36 and 165,730.60 is: 228,712.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,600.96 : 395,517.36 = 165,730.60 : x
  2. Step 2: Convert to fraction form
    286,600.96/395,517.36 = 165,730.60/x
  3. Step 3: Cross multiply
    286,600.96x = 395,517.36 × 165,730.60
  4. Step 4: Simplify right side
    286,600.96x = 65,549,329,383.22
  5. Step 5: Solve for x
    x = 65,549,329,383.22/286,600.96
  6. Step 6: Final answer
    x = 228,712.87

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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.