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Finding the Fourth Proportional to 229,175.06, 343,762.11 and 129,289.91

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Solution

The fourth proportional to 229,175.06, 343,762.11 and 129,289.91 is: 193,934.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,175.06 : 343,762.11 = 129,289.91 : x
  2. Step 2: Convert to fraction form
    229,175.06/343,762.11 = 129,289.91/x
  3. Step 3: Cross multiply
    229,175.06x = 343,762.11 × 129,289.91
  4. Step 4: Simplify right side
    229,175.06x = 44,444,970,544.50
  5. Step 5: Solve for x
    x = 44,444,970,544.50/229,175.06
  6. Step 6: Final answer
    x = 193,934.59

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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.