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Finding the Fourth Proportional to 481,400.40, 664,353.30 and 266,540.46

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Solution

The fourth proportional to 481,400.40, 664,353.30 and 266,540.46 is: 367,837.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,400.40 : 664,353.30 = 266,540.46 : x
  2. Step 2: Convert to fraction form
    481,400.40/664,353.30 = 266,540.46/x
  3. Step 3: Cross multiply
    481,400.40x = 664,353.30 × 266,540.46
  4. Step 4: Simplify right side
    481,400.40x = 177,077,034,184.52
  5. Step 5: Solve for x
    x = 177,077,034,184.52/481,400.40
  6. Step 6: Final answer
    x = 367,837.32

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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.