Home / 211,265.92-291,538.06-115,776.64

Finding the Fourth Proportional to 211,265.92, 291,538.06 and 115,776.64

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Solution

The fourth proportional to 211,265.92, 291,538.06 and 115,776.64 is: 159,766.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,265.92 : 291,538.06 = 115,776.64 : x
  2. Step 2: Convert to fraction form
    211,265.92/291,538.06 = 115,776.64/x
  3. Step 3: Cross multiply
    211,265.92x = 291,538.06 × 115,776.64
  4. Step 4: Simplify right side
    211,265.92x = 33,753,297,018.92
  5. Step 5: Solve for x
    x = 33,753,297,018.92/211,265.92
  6. Step 6: Final answer
    x = 159,766.88

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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.