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Finding the Fourth Proportional to 323,441.34, 485,139.26 and 120,998.82

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Solution

The fourth proportional to 323,441.34, 485,139.26 and 120,998.82 is: 181,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,441.34 : 485,139.26 = 120,998.82 : x
  2. Step 2: Convert to fraction form
    323,441.34/485,139.26 = 120,998.82/x
  3. Step 3: Cross multiply
    323,441.34x = 485,139.26 × 120,998.82
  4. Step 4: Simplify right side
    323,441.34x = 58,701,277,995.67
  5. Step 5: Solve for x
    x = 58,701,277,995.67/323,441.34
  6. Step 6: Final answer
    x = 181,489.72

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1.5x scale

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.