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Finding the Fourth Proportional to 229,878.94, 344,370.08 and 129,736.21

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Solution

The fourth proportional to 229,878.94, 344,370.08 and 129,736.21 is: 194,351.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,878.94 : 344,370.08 = 129,736.21 : x
  2. Step 2: Convert to fraction form
    229,878.94/344,370.08 = 129,736.21/x
  3. Step 3: Cross multiply
    229,878.94x = 344,370.08 × 129,736.21
  4. Step 4: Simplify right side
    229,878.94x = 44,677,269,016.60
  5. Step 5: Solve for x
    x = 44,677,269,016.60/229,878.94
  6. Step 6: Final answer
    x = 194,351.29

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1.5x scale

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.