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Finding the Fourth Proportional to 331,340.60, 457,223.04 and 186,138.48

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Solution

The fourth proportional to 331,340.60, 457,223.04 and 186,138.48 is: 256,855.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,340.60 : 457,223.04 = 186,138.48 : x
  2. Step 2: Convert to fraction form
    331,340.60/457,223.04 = 186,138.48/x
  3. Step 3: Cross multiply
    331,340.60x = 457,223.04 × 186,138.48
  4. Step 4: Simplify right side
    331,340.60x = 85,106,801,686.58
  5. Step 5: Solve for x
    x = 85,106,801,686.58/331,340.60
  6. Step 6: Final answer
    x = 256,855.94

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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.