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Finding the Fourth Proportional to 545,999.40, 818,853.30 and 166,919.40

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Solution

The fourth proportional to 545,999.40, 818,853.30 and 166,919.40 is: 250,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,999.40 : 818,853.30 = 166,919.40 : x
  2. Step 2: Convert to fraction form
    545,999.40/818,853.30 = 166,919.40/x
  3. Step 3: Cross multiply
    545,999.40x = 818,853.30 × 166,919.40
  4. Step 4: Simplify right side
    545,999.40x = 136,682,501,524.02
  5. Step 5: Solve for x
    x = 136,682,501,524.02/545,999.40
  6. Step 6: Final answer
    x = 250,334.53

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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.