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Finding the Fourth Proportional to 422,360.64, 582,858.72 and 231,377.76

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Solution

The fourth proportional to 422,360.64, 582,858.72 and 231,377.76 is: 319,301.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,360.64 : 582,858.72 = 231,377.76 : x
  2. Step 2: Convert to fraction form
    422,360.64/582,858.72 = 231,377.76/x
  3. Step 3: Cross multiply
    422,360.64x = 582,858.72 × 231,377.76
  4. Step 4: Simplify right side
    422,360.64x = 134,860,545,030.07
  5. Step 5: Solve for x
    x = 134,860,545,030.07/422,360.64
  6. Step 6: Final answer
    x = 319,301.88

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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.