Home / 422,238.64-582,667.56-231,215.12

Finding the Fourth Proportional to 422,238.64, 582,667.56 and 231,215.12

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Solution

The fourth proportional to 422,238.64, 582,667.56 and 231,215.12 is: 319,064.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,238.64 : 582,667.56 = 231,215.12 : x
  2. Step 2: Convert to fraction form
    422,238.64/582,667.56 = 231,215.12/x
  3. Step 3: Cross multiply
    422,238.64x = 582,667.56 × 231,215.12
  4. Step 4: Simplify right side
    422,238.64x = 134,721,549,805.51
  5. Step 5: Solve for x
    x = 134,721,549,805.51/422,238.64
  6. Step 6: Final answer
    x = 319,064.95

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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.