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Finding the Fourth Proportional to 201,222.67, 277,626.72 and 120,620.79

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Solution

The fourth proportional to 201,222.67, 277,626.72 and 120,620.79 is: 166,420.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,222.67 : 277,626.72 = 120,620.79 : x
  2. Step 2: Convert to fraction form
    201,222.67/277,626.72 = 120,620.79/x
  3. Step 3: Cross multiply
    201,222.67x = 277,626.72 × 120,620.79
  4. Step 4: Simplify right side
    201,222.67x = 33,487,554,291.51
  5. Step 5: Solve for x
    x = 33,487,554,291.51/201,222.67
  6. Step 6: Final answer
    x = 166,420.39

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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.