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Finding the Fourth Proportional to 215,435.88, 297,295.80 and 119,942.64

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Solution

The fourth proportional to 215,435.88, 297,295.80 and 119,942.64 is: 165,517.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,435.88 : 297,295.80 = 119,942.64 : x
  2. Step 2: Convert to fraction form
    215,435.88/297,295.80 = 119,942.64/x
  3. Step 3: Cross multiply
    215,435.88x = 297,295.80 × 119,942.64
  4. Step 4: Simplify right side
    215,435.88x = 35,658,443,112.91
  5. Step 5: Solve for x
    x = 35,658,443,112.91/215,435.88
  6. Step 6: Final answer
    x = 165,517.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.