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Finding the Fourth Proportional to 379,777.26, 524,144.43 and 218,628.30

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Solution

The fourth proportional to 379,777.26, 524,144.43 and 218,628.30 is: 301,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,777.26 : 524,144.43 = 218,628.30 : x
  2. Step 2: Convert to fraction form
    379,777.26/524,144.43 = 218,628.30/x
  3. Step 3: Cross multiply
    379,777.26x = 524,144.43 × 218,628.30
  4. Step 4: Simplify right side
    379,777.26x = 114,592,805,685.37
  5. Step 5: Solve for x
    x = 114,592,805,685.37/379,777.26
  6. Step 6: Final answer
    x = 301,736.88

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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.