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Finding the Fourth Proportional to 321,596.15, 443,883.34 and 218,404.95

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Solution

The fourth proportional to 321,596.15, 443,883.34 and 218,404.95 is: 301,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,596.15 : 443,883.34 = 218,404.95 : x
  2. Step 2: Convert to fraction form
    321,596.15/443,883.34 = 218,404.95/x
  3. Step 3: Cross multiply
    321,596.15x = 443,883.34 × 218,404.95
  4. Step 4: Simplify right side
    321,596.15x = 96,946,316,194.95
  5. Step 5: Solve for x
    x = 96,946,316,194.95/321,596.15
  6. Step 6: Final answer
    x = 301,453.60

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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.