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Finding the Fourth Proportional to 340,002.20, 510,003.30 and 204,699.80

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Solution

The fourth proportional to 340,002.20, 510,003.30 and 204,699.80 is: 307,049.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,002.20 : 510,003.30 = 204,699.80 : x
  2. Step 2: Convert to fraction form
    340,002.20/510,003.30 = 204,699.80/x
  3. Step 3: Cross multiply
    340,002.20x = 510,003.30 × 204,699.80
  4. Step 4: Simplify right side
    340,002.20x = 104,397,573,509.34
  5. Step 5: Solve for x
    x = 104,397,573,509.34/340,002.20
  6. Step 6: Final answer
    x = 307,049.70

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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.