Home / 283,429.11-391,159.77-211,684.56

Finding the Fourth Proportional to 283,429.11, 391,159.77 and 211,684.56

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Solution

The fourth proportional to 283,429.11, 391,159.77 and 211,684.56 is: 292,145.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,429.11 : 391,159.77 = 211,684.56 : x
  2. Step 2: Convert to fraction form
    283,429.11/391,159.77 = 211,684.56/x
  3. Step 3: Cross multiply
    283,429.11x = 391,159.77 × 211,684.56
  4. Step 4: Simplify right side
    283,429.11x = 82,802,483,802.15
  5. Step 5: Solve for x
    x = 82,802,483,802.15/283,429.11
  6. Step 6: Final answer
    x = 292,145.31

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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.