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Finding the Fourth Proportional to 330,558.62, 495,828.81 and 222,240.15

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Solution

The fourth proportional to 330,558.62, 495,828.81 and 222,240.15 is: 333,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,558.62 : 495,828.81 = 222,240.15 : x
  2. Step 2: Convert to fraction form
    330,558.62/495,828.81 = 222,240.15/x
  3. Step 3: Cross multiply
    330,558.62x = 495,828.81 × 222,240.15
  4. Step 4: Simplify right side
    330,558.62x = 110,193,069,108.72
  5. Step 5: Solve for x
    x = 110,193,069,108.72/330,558.62
  6. Step 6: Final answer
    x = 333,354.10

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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.