Home / 215,821.40-323,732.10-196,467.80

Finding the Fourth Proportional to 215,821.40, 323,732.10 and 196,467.80

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Solution

The fourth proportional to 215,821.40, 323,732.10 and 196,467.80 is: 294,701.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,821.40 : 323,732.10 = 196,467.80 : x
  2. Step 2: Convert to fraction form
    215,821.40/323,732.10 = 196,467.80/x
  3. Step 3: Cross multiply
    215,821.40x = 323,732.10 × 196,467.80
  4. Step 4: Simplify right side
    215,821.40x = 63,602,933,476.38
  5. Step 5: Solve for x
    x = 63,602,933,476.38/215,821.40
  6. Step 6: Final answer
    x = 294,701.70

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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.