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Finding the Fourth Proportional to 318,485.97, 439,460.43 and 182,493.76

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Solution

The fourth proportional to 318,485.97, 439,460.43 and 182,493.76 is: 251,812.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,485.97 : 439,460.43 = 182,493.76 : x
  2. Step 2: Convert to fraction form
    318,485.97/439,460.43 = 182,493.76/x
  3. Step 3: Cross multiply
    318,485.97x = 439,460.43 × 182,493.76
  4. Step 4: Simplify right side
    318,485.97x = 80,198,786,241.92
  5. Step 5: Solve for x
    x = 80,198,786,241.92/318,485.97
  6. Step 6: Final answer
    x = 251,812.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.