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Finding the Fourth Proportional to 395,392.52, 545,644.31 and 214,104.45

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Solution

The fourth proportional to 395,392.52, 545,644.31 and 214,104.45 is: 295,465.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,392.52 : 545,644.31 = 214,104.45 : x
  2. Step 2: Convert to fraction form
    395,392.52/545,644.31 = 214,104.45/x
  3. Step 3: Cross multiply
    395,392.52x = 545,644.31 × 214,104.45
  4. Step 4: Simplify right side
    395,392.52x = 116,824,874,888.18
  5. Step 5: Solve for x
    x = 116,824,874,888.18/395,392.52
  6. Step 6: Final answer
    x = 295,465.57

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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.