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Finding the Fourth Proportional to 323,796.63, 485,751.11 and 99,151.77

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Solution

The fourth proportional to 323,796.63, 485,751.11 and 99,151.77 is: 148,744.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,796.63 : 485,751.11 = 99,151.77 : x
  2. Step 2: Convert to fraction form
    323,796.63/485,751.11 = 99,151.77/x
  3. Step 3: Cross multiply
    323,796.63x = 485,751.11 × 99,151.77
  4. Step 4: Simplify right side
    323,796.63x = 48,163,081,840.21
  5. Step 5: Solve for x
    x = 48,163,081,840.21/323,796.63
  6. Step 6: Final answer
    x = 148,744.85

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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.