Home / 283,736.24-391,583.64-211,991.72

Finding the Fourth Proportional to 283,736.24, 391,583.64 and 211,991.72

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Solution

The fourth proportional to 283,736.24, 391,583.64 and 211,991.72 is: 292,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,736.24 : 391,583.64 = 211,991.72 : x
  2. Step 2: Convert to fraction form
    283,736.24/391,583.64 = 211,991.72/x
  3. Step 3: Cross multiply
    283,736.24x = 391,583.64 × 211,991.72
  4. Step 4: Simplify right side
    283,736.24x = 83,012,489,367.46
  5. Step 5: Solve for x
    x = 83,012,489,367.46/283,736.24
  6. Step 6: Final answer
    x = 292,569.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.