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Finding the Fourth Proportional to 354,469.90, 532,093.65 and 221,500.30

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Solution

The fourth proportional to 354,469.90, 532,093.65 and 221,500.30 is: 332,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,469.90 : 532,093.65 = 221,500.30 : x
  2. Step 2: Convert to fraction form
    354,469.90/532,093.65 = 221,500.30/x
  3. Step 3: Cross multiply
    354,469.90x = 532,093.65 × 221,500.30
  4. Step 4: Simplify right side
    354,469.90x = 117,858,903,103.10
  5. Step 5: Solve for x
    x = 117,858,903,103.10/354,469.90
  6. Step 6: Final answer
    x = 332,493.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.