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Finding the Fourth Proportional to 306,077.80, 459,151.62 and 81,447.52

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Solution

The fourth proportional to 306,077.80, 459,151.62 and 81,447.52 is: 122,180.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,077.80 : 459,151.62 = 81,447.52 : x
  2. Step 2: Convert to fraction form
    306,077.80/459,151.62 = 81,447.52/x
  3. Step 3: Cross multiply
    306,077.80x = 459,151.62 × 81,447.52
  4. Step 4: Simplify right side
    306,077.80x = 37,396,760,752.98
  5. Step 5: Solve for x
    x = 37,396,760,752.98/306,077.80
  6. Step 6: Final answer
    x = 122,180.57

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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.