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Finding the Fourth Proportional to 331,537.40, 496,139.70 and 303,543.80

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Solution

The fourth proportional to 331,537.40, 496,139.70 and 303,543.80 is: 454,247.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,537.40 : 496,139.70 = 303,543.80 : x
  2. Step 2: Convert to fraction form
    331,537.40/496,139.70 = 303,543.80/x
  3. Step 3: Cross multiply
    331,537.40x = 496,139.70 × 303,543.80
  4. Step 4: Simplify right side
    331,537.40x = 150,600,129,868.86
  5. Step 5: Solve for x
    x = 150,600,129,868.86/331,537.40
  6. Step 6: Final answer
    x = 454,247.79

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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.