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Finding the Fourth Proportional to 395,348.34, 545,578.40 and 214,056.52

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Solution

The fourth proportional to 395,348.34, 545,578.40 and 214,056.52 is: 295,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,348.34 : 545,578.40 = 214,056.52 : x
  2. Step 2: Convert to fraction form
    395,348.34/545,578.40 = 214,056.52/x
  3. Step 3: Cross multiply
    395,348.34x = 545,578.40 × 214,056.52
  4. Step 4: Simplify right side
    395,348.34x = 116,784,613,691.17
  5. Step 5: Solve for x
    x = 116,784,613,691.17/395,348.34
  6. Step 6: Final answer
    x = 295,396.75

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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.