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Finding the Fourth Proportional to 347,071.50, 520,609.95 and 227,229.30

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Solution

The fourth proportional to 347,071.50, 520,609.95 and 227,229.30 is: 340,845.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,071.50 : 520,609.95 = 227,229.30 : x
  2. Step 2: Convert to fraction form
    347,071.50/520,609.95 = 227,229.30/x
  3. Step 3: Cross multiply
    347,071.50x = 520,609.95 × 227,229.30
  4. Step 4: Simplify right side
    347,071.50x = 118,297,834,511.54
  5. Step 5: Solve for x
    x = 118,297,834,511.54/347,071.50
  6. Step 6: Final answer
    x = 340,845.72

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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.