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Finding the Fourth Proportional to 318,474, 476,234.56 and 246,581.76

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Solution

The fourth proportional to 318,474, 476,234.56 and 246,581.76 is: 368,729.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,474 : 476,234.56 = 246,581.76 : x
  2. Step 2: Convert to fraction form
    318,474/476,234.56 = 246,581.76/x
  3. Step 3: Cross multiply
    318,474x = 476,234.56 × 246,581.76
  4. Step 4: Simplify right side
    318,474x = 117,430,755,977.63
  5. Step 5: Solve for x
    x = 117,430,755,977.63/318,474
  6. Step 6: Final answer
    x = 368,729.49

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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.