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Finding the Fourth Proportional to 394,634.80, 591,271.80 and 183,840.40

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Solution

The fourth proportional to 394,634.80, 591,271.80 and 183,840.40 is: 275,443.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,634.80 : 591,271.80 = 183,840.40 : x
  2. Step 2: Convert to fraction form
    394,634.80/591,271.80 = 183,840.40/x
  3. Step 3: Cross multiply
    394,634.80x = 591,271.80 × 183,840.40
  4. Step 4: Simplify right side
    394,634.80x = 108,699,644,220.72
  5. Step 5: Solve for x
    x = 108,699,644,220.72/394,634.80
  6. Step 6: Final answer
    x = 275,443.64

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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.