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Finding the Fourth Proportional to 217,796.37, 300,551.22 and 122,307.09

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Solution

The fourth proportional to 217,796.37, 300,551.22 and 122,307.09 is: 168,779.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,796.37 : 300,551.22 = 122,307.09 : x
  2. Step 2: Convert to fraction form
    217,796.37/300,551.22 = 122,307.09/x
  3. Step 3: Cross multiply
    217,796.37x = 300,551.22 × 122,307.09
  4. Step 4: Simplify right side
    217,796.37x = 36,759,545,114.15
  5. Step 5: Solve for x
    x = 36,759,545,114.15/217,796.37
  6. Step 6: Final answer
    x = 168,779.42

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1.5x scale

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.