Home / 205,100.78-307,651.18-55,341.08

Finding the Fourth Proportional to 205,100.78, 307,651.18 and 55,341.08

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Solution

The fourth proportional to 205,100.78, 307,651.18 and 55,341.08 is: 83,011.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,100.78 : 307,651.18 = 55,341.08 : x
  2. Step 2: Convert to fraction form
    205,100.78/307,651.18 = 55,341.08/x
  3. Step 3: Cross multiply
    205,100.78x = 307,651.18 × 55,341.08
  4. Step 4: Simplify right side
    205,100.78x = 17,025,746,887.87
  5. Step 5: Solve for x
    x = 17,025,746,887.87/205,100.78
  6. Step 6: Final answer
    x = 83,011.61

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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.