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Finding the Fourth Proportional to 229,168.56, 343,798.20 and 71,390.28

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Solution

The fourth proportional to 229,168.56, 343,798.20 and 71,390.28 is: 107,099.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,168.56 : 343,798.20 = 71,390.28 : x
  2. Step 2: Convert to fraction form
    229,168.56/343,798.20 = 71,390.28/x
  3. Step 3: Cross multiply
    229,168.56x = 343,798.20 × 71,390.28
  4. Step 4: Simplify right side
    229,168.56x = 24,543,849,761.50
  5. Step 5: Solve for x
    x = 24,543,849,761.50/229,168.56
  6. Step 6: Final answer
    x = 107,099.55

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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.