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Finding the Fourth Proportional to 394,501.20, 592,140.60 and 195,046.80

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Solution

The fourth proportional to 394,501.20, 592,140.60 and 195,046.80 is: 292,762.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,501.20 : 592,140.60 = 195,046.80 : x
  2. Step 2: Convert to fraction form
    394,501.20/592,140.60 = 195,046.80/x
  3. Step 3: Cross multiply
    394,501.20x = 592,140.60 × 195,046.80
  4. Step 4: Simplify right side
    394,501.20x = 115,495,129,180.08
  5. Step 5: Solve for x
    x = 115,495,129,180.08/394,501.20
  6. Step 6: Final answer
    x = 292,762.43

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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.