Home / 205,004.72-307,481.64-55,256.72

Finding the Fourth Proportional to 205,004.72, 307,481.64 and 55,256.72

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Solution

The fourth proportional to 205,004.72, 307,481.64 and 55,256.72 is: 82,878.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,004.72 : 307,481.64 = 55,256.72 : x
  2. Step 2: Convert to fraction form
    205,004.72/307,481.64 = 55,256.72/x
  3. Step 3: Cross multiply
    205,004.72x = 307,481.64 × 55,256.72
  4. Step 4: Simplify right side
    205,004.72x = 16,990,426,886.62
  5. Step 5: Solve for x
    x = 16,990,426,886.62/205,004.72
  6. Step 6: Final answer
    x = 82,878.22

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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.