Home / 219,767.05-331,297.75-205,119.46

Finding the Fourth Proportional to 219,767.05, 331,297.75 and 205,119.46

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Solution

The fourth proportional to 219,767.05, 331,297.75 and 205,119.46 is: 309,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,767.05 : 331,297.75 = 205,119.46 : x
  2. Step 2: Convert to fraction form
    219,767.05/331,297.75 = 205,119.46/x
  3. Step 3: Cross multiply
    219,767.05x = 331,297.75 × 205,119.46
  4. Step 4: Simplify right side
    219,767.05x = 67,955,615,579.22
  5. Step 5: Solve for x
    x = 67,955,615,579.22/219,767.05
  6. Step 6: Final answer
    x = 309,216.58

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.