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Finding the Fourth Proportional to 321,617.88, 443,320.02 and 253,523.88

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Solution

The fourth proportional to 321,617.88, 443,320.02 and 253,523.88 is: 349,458.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,617.88 : 443,320.02 = 253,523.88 : x
  2. Step 2: Convert to fraction form
    321,617.88/443,320.02 = 253,523.88/x
  3. Step 3: Cross multiply
    321,617.88x = 443,320.02 × 253,523.88
  4. Step 4: Simplify right side
    321,617.88x = 112,392,211,552.08
  5. Step 5: Solve for x
    x = 112,392,211,552.08/321,617.88
  6. Step 6: Final answer
    x = 349,458.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.