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Finding the Fourth Proportional to 318,479.34, 439,451.31 and 182,487.12

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Solution

The fourth proportional to 318,479.34, 439,451.31 and 182,487.12 is: 251,803.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,479.34 : 439,451.31 = 182,487.12 : x
  2. Step 2: Convert to fraction form
    318,479.34/439,451.31 = 182,487.12/x
  3. Step 3: Cross multiply
    318,479.34x = 439,451.31 × 182,487.12
  4. Step 4: Simplify right side
    318,479.34x = 80,194,203,029.69
  5. Step 5: Solve for x
    x = 80,194,203,029.69/318,479.34
  6. Step 6: Final answer
    x = 251,803.47

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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.