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Finding the Fourth Proportional to 347,611.99, 522,291.47 and 221,308.62

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Solution

The fourth proportional to 347,611.99, 522,291.47 and 221,308.62 is: 332,519.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,611.99 : 522,291.47 = 221,308.62 : x
  2. Step 2: Convert to fraction form
    347,611.99/522,291.47 = 221,308.62/x
  3. Step 3: Cross multiply
    347,611.99x = 522,291.47 × 221,308.62
  4. Step 4: Simplify right side
    347,611.99x = 115,587,604,463.47
  5. Step 5: Solve for x
    x = 115,587,604,463.47/347,611.99
  6. Step 6: Final answer
    x = 332,519.04

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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.