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Finding the Fourth Proportional to 395,480.26, 545,786.67 and 242,536.06

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Solution

The fourth proportional to 395,480.26, 545,786.67 and 242,536.06 is: 334,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,480.26 : 545,786.67 = 242,536.06 : x
  2. Step 2: Convert to fraction form
    395,480.26/545,786.67 = 242,536.06/x
  3. Step 3: Cross multiply
    395,480.26x = 545,786.67 × 242,536.06
  4. Step 4: Simplify right side
    395,480.26x = 132,372,948,542.32
  5. Step 5: Solve for x
    x = 132,372,948,542.32/395,480.26
  6. Step 6: Final answer
    x = 334,714.43

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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.