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Finding the Fourth Proportional to 318,675.66, 439,755.26 and 182,703

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Solution

The fourth proportional to 318,675.66, 439,755.26 and 182,703 is: 252,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,675.66 : 439,755.26 = 182,703 : x
  2. Step 2: Convert to fraction form
    318,675.66/439,755.26 = 182,703/x
  3. Step 3: Cross multiply
    318,675.66x = 439,755.26 × 182,703
  4. Step 4: Simplify right side
    318,675.66x = 80,344,605,267.78
  5. Step 5: Solve for x
    x = 80,344,605,267.78/318,675.66
  6. Step 6: Final answer
    x = 252,120.31

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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.