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Finding the Fourth Proportional to 545,375.40, 818,100.48 and 185,399.76

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Solution

The fourth proportional to 545,375.40, 818,100.48 and 185,399.76 is: 278,112.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,375.40 : 818,100.48 = 185,399.76 : x
  2. Step 2: Convert to fraction form
    545,375.40/818,100.48 = 185,399.76/x
  3. Step 3: Cross multiply
    545,375.40x = 818,100.48 × 185,399.76
  4. Step 4: Simplify right side
    545,375.40x = 151,675,632,647.89
  5. Step 5: Solve for x
    x = 151,675,632,647.89/545,375.40
  6. Step 6: Final answer
    x = 278,112.35

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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.