Home / 287,091.92-395,776.26-201,944.72

Finding the Fourth Proportional to 287,091.92, 395,776.26 and 201,944.72

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Solution

The fourth proportional to 287,091.92, 395,776.26 and 201,944.72 is: 278,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,091.92 : 395,776.26 = 201,944.72 : x
  2. Step 2: Convert to fraction form
    287,091.92/395,776.26 = 201,944.72/x
  3. Step 3: Cross multiply
    287,091.92x = 395,776.26 × 201,944.72
  4. Step 4: Simplify right side
    287,091.92x = 79,924,926,008.35
  5. Step 5: Solve for x
    x = 79,924,926,008.35/287,091.92
  6. Step 6: Final answer
    x = 278,394.90

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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.