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Finding the Fourth Proportional to 331,521.90, 496,116.45 and 303,528.30

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Solution

The fourth proportional to 331,521.90, 496,116.45 and 303,528.30 is: 454,224.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,521.90 : 496,116.45 = 303,528.30 : x
  2. Step 2: Convert to fraction form
    331,521.90/496,116.45 = 303,528.30/x
  3. Step 3: Cross multiply
    331,521.90x = 496,116.45 × 303,528.30
  4. Step 4: Simplify right side
    331,521.90x = 150,585,382,670.54
  5. Step 5: Solve for x
    x = 150,585,382,670.54/331,521.90
  6. Step 6: Final answer
    x = 454,224.54

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1.5x scale

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.