Home / 321,063.15-443,364.98-240,350.55

Finding the Fourth Proportional to 321,063.15, 443,364.98 and 240,350.55

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Solution

The fourth proportional to 321,063.15, 443,364.98 and 240,350.55 is: 331,906.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,063.15 : 443,364.98 = 240,350.55 : x
  2. Step 2: Convert to fraction form
    321,063.15/443,364.98 = 240,350.55/x
  3. Step 3: Cross multiply
    321,063.15x = 443,364.98 × 240,350.55
  4. Step 4: Simplify right side
    321,063.15x = 106,563,013,929.37
  5. Step 5: Solve for x
    x = 106,563,013,929.37/321,063.15
  6. Step 6: Final answer
    x = 331,906.71

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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.