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Finding the Fourth Proportional to 335,429.40, 503,144.10 and 298,687.80

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Solution

The fourth proportional to 335,429.40, 503,144.10 and 298,687.80 is: 448,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,429.40 : 503,144.10 = 298,687.80 : x
  2. Step 2: Convert to fraction form
    335,429.40/503,144.10 = 298,687.80/x
  3. Step 3: Cross multiply
    335,429.40x = 503,144.10 × 298,687.80
  4. Step 4: Simplify right side
    335,429.40x = 150,283,004,311.98
  5. Step 5: Solve for x
    x = 150,283,004,311.98/335,429.40
  6. Step 6: Final answer
    x = 448,031.70

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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.