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Finding the Fourth Proportional to 394,979.60, 592,080.60 and 195,330.80

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Solution

The fourth proportional to 394,979.60, 592,080.60 and 195,330.80 is: 292,803.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,979.60 : 592,080.60 = 195,330.80 : x
  2. Step 2: Convert to fraction form
    394,979.60/592,080.60 = 195,330.80/x
  3. Step 3: Cross multiply
    394,979.60x = 592,080.60 × 195,330.80
  4. Step 4: Simplify right side
    394,979.60x = 115,651,577,262.48
  5. Step 5: Solve for x
    x = 115,651,577,262.48/394,979.60
  6. Step 6: Final answer
    x = 292,803.93

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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.