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Finding the Fourth Proportional to 214,888.78, 322,333.14 and 67,144.78

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Solution

The fourth proportional to 214,888.78, 322,333.14 and 67,144.78 is: 100,717.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,888.78 : 322,333.14 = 67,144.78 : x
  2. Step 2: Convert to fraction form
    214,888.78/322,333.14 = 67,144.78/x
  3. Step 3: Cross multiply
    214,888.78x = 322,333.14 × 67,144.78
  4. Step 4: Simplify right side
    214,888.78x = 21,642,987,772.01
  5. Step 5: Solve for x
    x = 21,642,987,772.01/214,888.78
  6. Step 6: Final answer
    x = 100,717.16

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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.