Home / 211,300.80-291,593.76-115,813.44

Finding the Fourth Proportional to 211,300.80, 291,593.76 and 115,813.44

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Solution

The fourth proportional to 211,300.80, 291,593.76 and 115,813.44 is: 159,821.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,300.80 : 291,593.76 = 115,813.44 : x
  2. Step 2: Convert to fraction form
    211,300.80/291,593.76 = 115,813.44/x
  3. Step 3: Cross multiply
    211,300.80x = 291,593.76 × 115,813.44
  4. Step 4: Simplify right side
    211,300.80x = 33,770,476,428.13
  5. Step 5: Solve for x
    x = 33,770,476,428.13/211,300.80
  6. Step 6: Final answer
    x = 159,821.81

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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.