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Finding the Fourth Proportional to 323,081.82, 484,622.87 and 145,381.26

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Solution

The fourth proportional to 323,081.82, 484,622.87 and 145,381.26 is: 218,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,081.82 : 484,622.87 = 145,381.26 : x
  2. Step 2: Convert to fraction form
    323,081.82/484,622.87 = 145,381.26/x
  3. Step 3: Cross multiply
    323,081.82x = 484,622.87 × 145,381.26
  4. Step 4: Simplify right side
    323,081.82x = 70,455,083,465.42
  5. Step 5: Solve for x
    x = 70,455,083,465.42/323,081.82
  6. Step 6: Final answer
    x = 218,071.95

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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.