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Finding the Fourth Proportional to 229,087.68, 343,549.08 and 79,287.28

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Solution

The fourth proportional to 229,087.68, 343,549.08 and 79,287.28 is: 118,902.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,087.68 : 343,549.08 = 79,287.28 : x
  2. Step 2: Convert to fraction form
    229,087.68/343,549.08 = 79,287.28/x
  3. Step 3: Cross multiply
    229,087.68x = 343,549.08 × 79,287.28
  4. Step 4: Simplify right side
    229,087.68x = 27,239,072,099.70
  5. Step 5: Solve for x
    x = 27,239,072,099.70/229,087.68
  6. Step 6: Final answer
    x = 118,902.39

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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.