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Finding the Fourth Proportional to 245,279.80, 367,968.30 and 206,108.20

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Solution

The fourth proportional to 245,279.80, 367,968.30 and 206,108.20 is: 309,203.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,279.80 : 367,968.30 = 206,108.20 : x
  2. Step 2: Convert to fraction form
    245,279.80/367,968.30 = 206,108.20/x
  3. Step 3: Cross multiply
    245,279.80x = 367,968.30 × 206,108.20
  4. Step 4: Simplify right side
    245,279.80x = 75,841,283,970.06
  5. Step 5: Solve for x
    x = 75,841,283,970.06/245,279.80
  6. Step 6: Final answer
    x = 309,203.14

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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.