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Finding the Fourth Proportional to 491,825.20, 737,737.80 and 159,401.20

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Solution

The fourth proportional to 491,825.20, 737,737.80 and 159,401.20 is: 239,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,825.20 : 737,737.80 = 159,401.20 : x
  2. Step 2: Convert to fraction form
    491,825.20/737,737.80 = 159,401.20/x
  3. Step 3: Cross multiply
    491,825.20x = 737,737.80 × 159,401.20
  4. Step 4: Simplify right side
    491,825.20x = 117,596,290,605.36
  5. Step 5: Solve for x
    x = 117,596,290,605.36/491,825.20
  6. Step 6: Final answer
    x = 239,101.80

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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.