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Finding the Fourth Proportional to 394,930.60, 592,007.10 and 195,281.80

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Solution

The fourth proportional to 394,930.60, 592,007.10 and 195,281.80 is: 292,730.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,930.60 : 592,007.10 = 195,281.80 : x
  2. Step 2: Convert to fraction form
    394,930.60/592,007.10 = 195,281.80/x
  3. Step 3: Cross multiply
    394,930.60x = 592,007.10 × 195,281.80
  4. Step 4: Simplify right side
    394,930.60x = 115,608,212,100.78
  5. Step 5: Solve for x
    x = 115,608,212,100.78/394,930.60
  6. Step 6: Final answer
    x = 292,730.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.