Home / 211,270.67-291,555.82-115,775.31

Finding the Fourth Proportional to 211,270.67, 291,555.82 and 115,775.31

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Solution

The fourth proportional to 211,270.67, 291,555.82 and 115,775.31 is: 159,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,270.67 : 291,555.82 = 115,775.31 : x
  2. Step 2: Convert to fraction form
    211,270.67/291,555.82 = 115,775.31/x
  3. Step 3: Cross multiply
    211,270.67x = 291,555.82 × 115,775.31
  4. Step 4: Simplify right side
    211,270.67x = 33,754,965,442.80
  5. Step 5: Solve for x
    x = 33,754,965,442.80/211,270.67
  6. Step 6: Final answer
    x = 159,771.19

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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.