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Finding the Fourth Proportional to 303,842.88, 455,151.68 and 254,416.96

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Solution

The fourth proportional to 303,842.88, 455,151.68 and 254,416.96 is: 381,112.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,842.88 : 455,151.68 = 254,416.96 : x
  2. Step 2: Convert to fraction form
    303,842.88/455,151.68 = 254,416.96/x
  3. Step 3: Cross multiply
    303,842.88x = 455,151.68 × 254,416.96
  4. Step 4: Simplify right side
    303,842.88x = 115,798,306,764.49
  5. Step 5: Solve for x
    x = 115,798,306,764.49/303,842.88
  6. Step 6: Final answer
    x = 381,112.46

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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.