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Finding the Fourth Proportional to 270,356.54, 405,596.26 and 143,930.15

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Solution

The fourth proportional to 270,356.54, 405,596.26 and 143,930.15 is: 215,927.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,356.54 : 405,596.26 = 143,930.15 : x
  2. Step 2: Convert to fraction form
    270,356.54/405,596.26 = 143,930.15/x
  3. Step 3: Cross multiply
    270,356.54x = 405,596.26 × 143,930.15
  4. Step 4: Simplify right side
    270,356.54x = 58,377,530,214.16
  5. Step 5: Solve for x
    x = 58,377,530,214.16/270,356.54
  6. Step 6: Final answer
    x = 215,927.94

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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.