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Finding the Fourth Proportional to 331,661.21, 457,635.08 and 195,684.89

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Solution

The fourth proportional to 331,661.21, 457,635.08 and 195,684.89 is: 270,011.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,661.21 : 457,635.08 = 195,684.89 : x
  2. Step 2: Convert to fraction form
    331,661.21/457,635.08 = 195,684.89/x
  3. Step 3: Cross multiply
    331,661.21x = 457,635.08 × 195,684.89
  4. Step 4: Simplify right side
    331,661.21x = 89,552,268,490.98
  5. Step 5: Solve for x
    x = 89,552,268,490.98/331,661.21
  6. Step 6: Final answer
    x = 270,011.29

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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.