Home / 215,188.20-322,782.30-165,364.20

Finding the Fourth Proportional to 215,188.20, 322,782.30 and 165,364.20

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Solution

The fourth proportional to 215,188.20, 322,782.30 and 165,364.20 is: 248,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,188.20 : 322,782.30 = 165,364.20 : x
  2. Step 2: Convert to fraction form
    215,188.20/322,782.30 = 165,364.20/x
  3. Step 3: Cross multiply
    215,188.20x = 322,782.30 × 165,364.20
  4. Step 4: Simplify right side
    215,188.20x = 53,376,636,813.66
  5. Step 5: Solve for x
    x = 53,376,636,813.66/215,188.20
  6. Step 6: Final answer
    x = 248,046.30

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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.