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Finding the Fourth Proportional to 351,848.88, 485,539.47 and 208,523.79

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Solution

The fourth proportional to 351,848.88, 485,539.47 and 208,523.79 is: 287,755.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,848.88 : 485,539.47 = 208,523.79 : x
  2. Step 2: Convert to fraction form
    351,848.88/485,539.47 = 208,523.79/x
  3. Step 3: Cross multiply
    351,848.88x = 485,539.47 × 208,523.79
  4. Step 4: Simplify right side
    351,848.88x = 101,246,530,478.99
  5. Step 5: Solve for x
    x = 101,246,530,478.99/351,848.88
  6. Step 6: Final answer
    x = 287,755.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.