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Finding the Fourth Proportional to 333,012.20, 498,060.30 and 297,728.60

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Solution

The fourth proportional to 333,012.20, 498,060.30 and 297,728.60 is: 445,289.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,012.20 : 498,060.30 = 297,728.60 : x
  2. Step 2: Convert to fraction form
    333,012.20/498,060.30 = 297,728.60/x
  3. Step 3: Cross multiply
    333,012.20x = 498,060.30 × 297,728.60
  4. Step 4: Simplify right side
    333,012.20x = 148,286,795,834.58
  5. Step 5: Solve for x
    x = 148,286,795,834.58/333,012.20
  6. Step 6: Final answer
    x = 445,289.38

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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.