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Finding the Fourth Proportional to 339,278.70, 508,140.45 and 331,502.70

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Solution

The fourth proportional to 339,278.70, 508,140.45 and 331,502.70 is: 496,494.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,278.70 : 508,140.45 = 331,502.70 : x
  2. Step 2: Convert to fraction form
    339,278.70/508,140.45 = 331,502.70/x
  3. Step 3: Cross multiply
    339,278.70x = 508,140.45 × 331,502.70
  4. Step 4: Simplify right side
    339,278.70x = 168,449,931,154.22
  5. Step 5: Solve for x
    x = 168,449,931,154.22/339,278.70
  6. Step 6: Final answer
    x = 496,494.27

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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.