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Finding the Fourth Proportional to 340,251.60, 510,231.60 and 140,505.60

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Solution

The fourth proportional to 340,251.60, 510,231.60 and 140,505.60 is: 210,698.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,251.60 : 510,231.60 = 140,505.60 : x
  2. Step 2: Convert to fraction form
    340,251.60/510,231.60 = 140,505.60/x
  3. Step 3: Cross multiply
    340,251.60x = 510,231.60 × 140,505.60
  4. Step 4: Simplify right side
    340,251.60x = 71,690,397,096.96
  5. Step 5: Solve for x
    x = 71,690,397,096.96/340,251.60
  6. Step 6: Final answer
    x = 210,698.19

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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.