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Finding the Fourth Proportional to 286,272.60, 395,027.84 and 165,404.40

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Solution

The fourth proportional to 286,272.60, 395,027.84 and 165,404.40 is: 228,241.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,272.60 : 395,027.84 = 165,404.40 : x
  2. Step 2: Convert to fraction form
    286,272.60/395,027.84 = 165,404.40/x
  3. Step 3: Cross multiply
    286,272.60x = 395,027.84 × 165,404.40
  4. Step 4: Simplify right side
    286,272.60x = 65,339,342,858.50
  5. Step 5: Solve for x
    x = 65,339,342,858.50/286,272.60
  6. Step 6: Final answer
    x = 228,241.69

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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.