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Finding the Fourth Proportional to 331,504.64, 457,356.39 and 216,848.73

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Solution

The fourth proportional to 331,504.64, 457,356.39 and 216,848.73 is: 299,172.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,504.64 : 457,356.39 = 216,848.73 : x
  2. Step 2: Convert to fraction form
    331,504.64/457,356.39 = 216,848.73/x
  3. Step 3: Cross multiply
    331,504.64x = 457,356.39 × 216,848.73
  4. Step 4: Simplify right side
    331,504.64x = 99,177,152,328.88
  5. Step 5: Solve for x
    x = 99,177,152,328.88/331,504.64
  6. Step 6: Final answer
    x = 299,172.75

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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.