Home / 399,162.75-550,937.15-263,221.26

Finding the Fourth Proportional to 399,162.75, 550,937.15 and 263,221.26

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Solution

The fourth proportional to 399,162.75, 550,937.15 and 263,221.26 is: 363,306.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,162.75 : 550,937.15 = 263,221.26 : x
  2. Step 2: Convert to fraction form
    399,162.75/550,937.15 = 263,221.26/x
  3. Step 3: Cross multiply
    399,162.75x = 550,937.15 × 263,221.26
  4. Step 4: Simplify right side
    399,162.75x = 145,018,369,487.70
  5. Step 5: Solve for x
    x = 145,018,369,487.70/399,162.75
  6. Step 6: Final answer
    x = 363,306.37

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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.