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Finding the Fourth Proportional to 568,985.10, 853,604.78 and 214,002.20

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Solution

The fourth proportional to 568,985.10, 853,604.78 and 214,002.20 is: 321,051.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,985.10 : 853,604.78 = 214,002.20 : x
  2. Step 2: Convert to fraction form
    568,985.10/853,604.78 = 214,002.20/x
  3. Step 3: Cross multiply
    568,985.10x = 853,604.78 × 214,002.20
  4. Step 4: Simplify right side
    568,985.10x = 182,673,300,850.52
  5. Step 5: Solve for x
    x = 182,673,300,850.52/568,985.10
  6. Step 6: Final answer
    x = 321,051.12

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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.