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Finding the Fourth Proportional to 395,334.90, 545,561.34 and 214,046.97

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Solution

The fourth proportional to 395,334.90, 545,561.34 and 214,046.97 is: 295,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,334.90 : 545,561.34 = 214,046.97 : x
  2. Step 2: Convert to fraction form
    395,334.90/545,561.34 = 214,046.97/x
  3. Step 3: Cross multiply
    395,334.90x = 545,561.34 × 214,046.97
  4. Step 4: Simplify right side
    395,334.90x = 116,775,751,776.14
  5. Step 5: Solve for x
    x = 116,775,751,776.14/395,334.90
  6. Step 6: Final answer
    x = 295,384.37

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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.