Home / 422,128.98-582,555.33-231,159.06

Finding the Fourth Proportional to 422,128.98, 582,555.33 and 231,159.06

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Solution

The fourth proportional to 422,128.98, 582,555.33 and 231,159.06 is: 319,009.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,128.98 : 582,555.33 = 231,159.06 : x
  2. Step 2: Convert to fraction form
    422,128.98/582,555.33 = 231,159.06/x
  3. Step 3: Cross multiply
    422,128.98x = 582,555.33 × 231,159.06
  4. Step 4: Simplify right side
    422,128.98x = 134,662,942,480.79
  5. Step 5: Solve for x
    x = 134,662,942,480.79/422,128.98
  6. Step 6: Final answer
    x = 319,009.00

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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.