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Finding the Fourth Proportional to 422,290.53, 582,761.04 and 231,310.77

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Solution

The fourth proportional to 422,290.53, 582,761.04 and 231,310.77 is: 319,208.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,290.53 : 582,761.04 = 231,310.77 : x
  2. Step 2: Convert to fraction form
    422,290.53/582,761.04 = 231,310.77/x
  3. Step 3: Cross multiply
    422,290.53x = 582,761.04 × 231,310.77
  4. Step 4: Simplify right side
    422,290.53x = 134,798,904,888.40
  5. Step 5: Solve for x
    x = 134,798,904,888.40/422,290.53
  6. Step 6: Final answer
    x = 319,208.92

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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.