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Finding the Fourth Proportional to 394,269.66, 544,091.54 and 212,981.54

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Solution

The fourth proportional to 394,269.66, 544,091.54 and 212,981.54 is: 293,914.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,269.66 : 544,091.54 = 212,981.54 : x
  2. Step 2: Convert to fraction form
    394,269.66/544,091.54 = 212,981.54/x
  3. Step 3: Cross multiply
    394,269.66x = 544,091.54 × 212,981.54
  4. Step 4: Simplify right side
    394,269.66x = 115,881,450,304.81
  5. Step 5: Solve for x
    x = 115,881,450,304.81/394,269.66
  6. Step 6: Final answer
    x = 293,914.20

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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.