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Finding the Fourth Proportional to 220,879.40, 330,827.02 and 181,513.40

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Solution

The fourth proportional to 220,879.40, 330,827.02 and 181,513.40 is: 271,865.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,879.40 : 330,827.02 = 181,513.40 : x
  2. Step 2: Convert to fraction form
    220,879.40/330,827.02 = 181,513.40/x
  3. Step 3: Cross multiply
    220,879.40x = 330,827.02 × 181,513.40
  4. Step 4: Simplify right side
    220,879.40x = 60,049,537,212.07
  5. Step 5: Solve for x
    x = 60,049,537,212.07/220,879.40
  6. Step 6: Final answer
    x = 271,865.72

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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.