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Finding the Fourth Proportional to 339,433.44, 509,150.15 and 86,714.48

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Solution

The fourth proportional to 339,433.44, 509,150.15 and 86,714.48 is: 130,071.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,433.44 : 509,150.15 = 86,714.48 : x
  2. Step 2: Convert to fraction form
    339,433.44/509,150.15 = 86,714.48/x
  3. Step 3: Cross multiply
    339,433.44x = 509,150.15 × 86,714.48
  4. Step 4: Simplify right side
    339,433.44x = 44,150,691,338.48
  5. Step 5: Solve for x
    x = 44,150,691,338.48/339,433.44
  6. Step 6: Final answer
    x = 130,071.72

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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.