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Finding the Fourth Proportional to 205,764.30, 308,676.02 and 63,620.65

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Solution

The fourth proportional to 205,764.30, 308,676.02 and 63,620.65 is: 95,440.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,764.30 : 308,676.02 = 63,620.65 : x
  2. Step 2: Convert to fraction form
    205,764.30/308,676.02 = 63,620.65/x
  3. Step 3: Cross multiply
    205,764.30x = 308,676.02 × 63,620.65
  4. Step 4: Simplify right side
    205,764.30x = 19,638,169,031.81
  5. Step 5: Solve for x
    x = 19,638,169,031.81/205,764.30
  6. Step 6: Final answer
    x = 95,440.12

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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.