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Finding the Fourth Proportional to 318,457.51, 439,481.88 and 182,517.53

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Solution

The fourth proportional to 318,457.51, 439,481.88 and 182,517.53 is: 251,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,457.51 : 439,481.88 = 182,517.53 : x
  2. Step 2: Convert to fraction form
    318,457.51/439,481.88 = 182,517.53/x
  3. Step 3: Cross multiply
    318,457.51x = 439,481.88 × 182,517.53
  4. Step 4: Simplify right side
    318,457.51x = 80,213,145,019.95
  5. Step 5: Solve for x
    x = 80,213,145,019.95/318,457.51
  6. Step 6: Final answer
    x = 251,880.21

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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.