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Finding the Fourth Proportional to 394,928.60, 592,004.10 and 195,279.80

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Solution

The fourth proportional to 394,928.60, 592,004.10 and 195,279.80 is: 292,727.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,928.60 : 592,004.10 = 195,279.80 : x
  2. Step 2: Convert to fraction form
    394,928.60/592,004.10 = 195,279.80/x
  3. Step 3: Cross multiply
    394,928.60x = 592,004.10 × 195,279.80
  4. Step 4: Simplify right side
    394,928.60x = 115,606,442,247.18
  5. Step 5: Solve for x
    x = 115,606,442,247.18/394,928.60
  6. Step 6: Final answer
    x = 292,727.45

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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.