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Finding the Fourth Proportional to 201,285.33, 277,788.27 and 120,711.39

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Solution

The fourth proportional to 201,285.33, 277,788.27 and 120,711.39 is: 166,590.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,285.33 : 277,788.27 = 120,711.39 : x
  2. Step 2: Convert to fraction form
    201,285.33/277,788.27 = 120,711.39/x
  3. Step 3: Cross multiply
    201,285.33x = 277,788.27 × 120,711.39
  4. Step 4: Simplify right side
    201,285.33x = 33,532,208,197.40
  5. Step 5: Solve for x
    x = 33,532,208,197.40/201,285.33
  6. Step 6: Final answer
    x = 166,590.42

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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.