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Finding the Fourth Proportional to 339,994.20, 510,068.10 and 199,680.60

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Solution

The fourth proportional to 339,994.20, 510,068.10 and 199,680.60 is: 299,566.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,994.20 : 510,068.10 = 199,680.60 : x
  2. Step 2: Convert to fraction form
    339,994.20/510,068.10 = 199,680.60/x
  3. Step 3: Cross multiply
    339,994.20x = 510,068.10 × 199,680.60
  4. Step 4: Simplify right side
    339,994.20x = 101,850,704,248.86
  5. Step 5: Solve for x
    x = 101,850,704,248.86/339,994.20
  6. Step 6: Final answer
    x = 299,566.01

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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.