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Finding the Fourth Proportional to 277,269.06, 415,903.70 and 66,907

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Solution

The fourth proportional to 277,269.06, 415,903.70 and 66,907 is: 100,360.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,269.06 : 415,903.70 = 66,907 : x
  2. Step 2: Convert to fraction form
    277,269.06/415,903.70 = 66,907/x
  3. Step 3: Cross multiply
    277,269.06x = 415,903.70 × 66,907
  4. Step 4: Simplify right side
    277,269.06x = 27,826,868,855.90
  5. Step 5: Solve for x
    x = 27,826,868,855.90/277,269.06
  6. Step 6: Final answer
    x = 100,360.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.