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Finding the Fourth Proportional to 260,227.65, 389,758.28 and 213,571.65

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Solution

The fourth proportional to 260,227.65, 389,758.28 and 213,571.65 is: 319,878.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,227.65 : 389,758.28 = 213,571.65 : x
  2. Step 2: Convert to fraction form
    260,227.65/389,758.28 = 213,571.65/x
  3. Step 3: Cross multiply
    260,227.65x = 389,758.28 × 213,571.65
  4. Step 4: Simplify right side
    260,227.65x = 83,241,317,892.90
  5. Step 5: Solve for x
    x = 83,241,317,892.90/260,227.65
  6. Step 6: Final answer
    x = 319,878.84

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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.