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Finding the Fourth Proportional to 330,200.70, 495,495.45 and 119,859.90

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Solution

The fourth proportional to 330,200.70, 495,495.45 and 119,859.90 is: 179,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,200.70 : 495,495.45 = 119,859.90 : x
  2. Step 2: Convert to fraction form
    330,200.70/495,495.45 = 119,859.90/x
  3. Step 3: Cross multiply
    330,200.70x = 495,495.45 × 119,859.90
  4. Step 4: Simplify right side
    330,200.70x = 59,390,035,087.46
  5. Step 5: Solve for x
    x = 59,390,035,087.46/330,200.70
  6. Step 6: Final answer
    x = 179,860.42

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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.