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Finding the Fourth Proportional to 335,402.28, 503,103.42 and 86,084.28

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Solution

The fourth proportional to 335,402.28, 503,103.42 and 86,084.28 is: 129,126.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,402.28 : 503,103.42 = 86,084.28 : x
  2. Step 2: Convert to fraction form
    335,402.28/503,103.42 = 86,084.28/x
  3. Step 3: Cross multiply
    335,402.28x = 503,103.42 × 86,084.28
  4. Step 4: Simplify right side
    335,402.28x = 43,309,295,676.24
  5. Step 5: Solve for x
    x = 43,309,295,676.24/335,402.28
  6. Step 6: Final answer
    x = 129,126.42

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.