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Finding the Fourth Proportional to 321,670.32, 482,662.64 and 227,505.60

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Solution

The fourth proportional to 321,670.32, 482,662.64 and 227,505.60 is: 341,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,670.32 : 482,662.64 = 227,505.60 : x
  2. Step 2: Convert to fraction form
    321,670.32/482,662.64 = 227,505.60/x
  3. Step 3: Cross multiply
    321,670.32x = 482,662.64 × 227,505.60
  4. Step 4: Simplify right side
    321,670.32x = 109,808,453,510.78
  5. Step 5: Solve for x
    x = 109,808,453,510.78/321,670.32
  6. Step 6: Final answer
    x = 341,369.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.