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Finding the Fourth Proportional to 245,093.80, 367,640.70 and 205,004.20

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Solution

The fourth proportional to 245,093.80, 367,640.70 and 205,004.20 is: 307,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,093.80 : 367,640.70 = 205,004.20 : x
  2. Step 2: Convert to fraction form
    245,093.80/367,640.70 = 205,004.20/x
  3. Step 3: Cross multiply
    245,093.80x = 367,640.70 × 205,004.20
  4. Step 4: Simplify right side
    245,093.80x = 75,367,887,590.94
  5. Step 5: Solve for x
    x = 75,367,887,590.94/245,093.80
  6. Step 6: Final answer
    x = 307,506.30

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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.