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Finding the Fourth Proportional to 229,140.32, 343,628.46 and 79,340.39

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Solution

The fourth proportional to 229,140.32, 343,628.46 and 79,340.39 is: 118,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,140.32 : 343,628.46 = 79,340.39 : x
  2. Step 2: Convert to fraction form
    229,140.32/343,628.46 = 79,340.39/x
  3. Step 3: Cross multiply
    229,140.32x = 343,628.46 × 79,340.39
  4. Step 4: Simplify right side
    229,140.32x = 27,263,614,313.36
  5. Step 5: Solve for x
    x = 27,263,614,313.36/229,140.32
  6. Step 6: Final answer
    x = 118,982.18

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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.