Home / 211,319.31-291,620.04-115,825.71

Finding the Fourth Proportional to 211,319.31, 291,620.04 and 115,825.71

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Solution

The fourth proportional to 211,319.31, 291,620.04 and 115,825.71 is: 159,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,319.31 : 291,620.04 = 115,825.71 : x
  2. Step 2: Convert to fraction form
    211,319.31/291,620.04 = 115,825.71/x
  3. Step 3: Cross multiply
    211,319.31x = 291,620.04 × 115,825.71
  4. Step 4: Simplify right side
    211,319.31x = 33,777,098,183.23
  5. Step 5: Solve for x
    x = 33,777,098,183.23/211,319.31
  6. Step 6: Final answer
    x = 159,839.15

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1.5x scale

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.