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Finding the Fourth Proportional to 394,632.80, 591,268.80 and 183,838.40

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Solution

The fourth proportional to 394,632.80, 591,268.80 and 183,838.40 is: 275,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,632.80 : 591,268.80 = 183,838.40 : x
  2. Step 2: Convert to fraction form
    394,632.80/591,268.80 = 183,838.40/x
  3. Step 3: Cross multiply
    394,632.80x = 591,268.80 × 183,838.40
  4. Step 4: Simplify right side
    394,632.80x = 108,697,910,161.92
  5. Step 5: Solve for x
    x = 108,697,910,161.92/394,632.80
  6. Step 6: Final answer
    x = 275,440.64

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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.