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Finding the Fourth Proportional to 395,304.83, 545,520.89 and 214,016.80

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Solution

The fourth proportional to 395,304.83, 545,520.89 and 214,016.80 is: 295,343.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,304.83 : 545,520.89 = 214,016.80 : x
  2. Step 2: Convert to fraction form
    395,304.83/545,520.89 = 214,016.80/x
  3. Step 3: Cross multiply
    395,304.83x = 545,520.89 × 214,016.80
  4. Step 4: Simplify right side
    395,304.83x = 116,750,635,210.95
  5. Step 5: Solve for x
    x = 116,750,635,210.95/395,304.83
  6. Step 6: Final answer
    x = 295,343.31

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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.