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Finding the Fourth Proportional to 318,262.57, 439,213.90 and 182,322.79

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Solution

The fourth proportional to 318,262.57, 439,213.90 and 182,322.79 is: 251,612.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,262.57 : 439,213.90 = 182,322.79 : x
  2. Step 2: Convert to fraction form
    318,262.57/439,213.90 = 182,322.79/x
  3. Step 3: Cross multiply
    318,262.57x = 439,213.90 × 182,322.79
  4. Step 4: Simplify right side
    318,262.57x = 80,078,704,297.01
  5. Step 5: Solve for x
    x = 80,078,704,297.01/318,262.57
  6. Step 6: Final answer
    x = 251,612.07

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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.