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Finding the Fourth Proportional to 321,354.95, 443,611.09 and 224,937.47

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Solution

The fourth proportional to 321,354.95, 443,611.09 and 224,937.47 is: 310,512.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,354.95 : 443,611.09 = 224,937.47 : x
  2. Step 2: Convert to fraction form
    321,354.95/443,611.09 = 224,937.47/x
  3. Step 3: Cross multiply
    321,354.95x = 443,611.09 × 224,937.47
  4. Step 4: Simplify right side
    321,354.95x = 99,784,755,143.43
  5. Step 5: Solve for x
    x = 99,784,755,143.43/321,354.95
  6. Step 6: Final answer
    x = 310,512.59

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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.