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Finding the Fourth Proportional to 395,552.62, 545,865.23 and 214,264.55

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Solution

The fourth proportional to 395,552.62, 545,865.23 and 214,264.55 is: 295,686.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,552.62 : 545,865.23 = 214,264.55 : x
  2. Step 2: Convert to fraction form
    395,552.62/545,865.23 = 214,264.55/x
  3. Step 3: Cross multiply
    395,552.62x = 545,865.23 × 214,264.55
  4. Step 4: Simplify right side
    395,552.62x = 116,959,565,672.93
  5. Step 5: Solve for x
    x = 116,959,565,672.93/395,552.62
  6. Step 6: Final answer
    x = 295,686.49

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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.