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Finding the Fourth Proportional to 611,100.36, 843,318.81 and 339,168.38

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Solution

The fourth proportional to 611,100.36, 843,318.81 and 339,168.38 is: 468,052.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,100.36 : 843,318.81 = 339,168.38 : x
  2. Step 2: Convert to fraction form
    611,100.36/843,318.81 = 339,168.38/x
  3. Step 3: Cross multiply
    611,100.36x = 843,318.81 × 339,168.38
  4. Step 4: Simplify right side
    611,100.36x = 286,027,070,394.63
  5. Step 5: Solve for x
    x = 286,027,070,394.63/611,100.36
  6. Step 6: Final answer
    x = 468,052.53

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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.