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Finding the Fourth Proportional to 540,375.61, 810,579.81 and 185,384.50

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Solution

The fourth proportional to 540,375.61, 810,579.81 and 185,384.50 is: 278,082.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,375.61 : 810,579.81 = 185,384.50 : x
  2. Step 2: Convert to fraction form
    540,375.61/810,579.81 = 185,384.50/x
  3. Step 3: Cross multiply
    540,375.61x = 810,579.81 × 185,384.50
  4. Step 4: Simplify right side
    540,375.61x = 150,268,932,786.95
  5. Step 5: Solve for x
    x = 150,268,932,786.95/540,375.61
  6. Step 6: Final answer
    x = 278,082.37

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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.