Home / 212,945.80-319,418.70-195,742.60

Finding the Fourth Proportional to 212,945.80, 319,418.70 and 195,742.60

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Solution

The fourth proportional to 212,945.80, 319,418.70 and 195,742.60 is: 293,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,945.80 : 319,418.70 = 195,742.60 : x
  2. Step 2: Convert to fraction form
    212,945.80/319,418.70 = 195,742.60/x
  3. Step 3: Cross multiply
    212,945.80x = 319,418.70 × 195,742.60
  4. Step 4: Simplify right side
    212,945.80x = 62,523,846,826.62
  5. Step 5: Solve for x
    x = 62,523,846,826.62/212,945.80
  6. Step 6: Final answer
    x = 293,613.90

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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.