Home / 221,610.51-307,887.12-218,953.31

Finding the Fourth Proportional to 221,610.51, 307,887.12 and 218,953.31

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Solution

The fourth proportional to 221,610.51, 307,887.12 and 218,953.31 is: 304,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,610.51 : 307,887.12 = 218,953.31 : x
  2. Step 2: Convert to fraction form
    221,610.51/307,887.12 = 218,953.31/x
  3. Step 3: Cross multiply
    221,610.51x = 307,887.12 × 218,953.31
  4. Step 4: Simplify right side
    221,610.51x = 67,412,902,490.93
  5. Step 5: Solve for x
    x = 67,412,902,490.93/221,610.51
  6. Step 6: Final answer
    x = 304,195.42

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.