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Finding the Fourth Proportional to 277,777.88, 383,327.96 and 155,269.65

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Solution

The fourth proportional to 277,777.88, 383,327.96 and 155,269.65 is: 214,269.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,777.88 : 383,327.96 = 155,269.65 : x
  2. Step 2: Convert to fraction form
    277,777.88/383,327.96 = 155,269.65/x
  3. Step 3: Cross multiply
    277,777.88x = 383,327.96 × 155,269.65
  4. Step 4: Simplify right side
    277,777.88x = 59,519,199,776.93
  5. Step 5: Solve for x
    x = 59,519,199,776.93/277,777.88
  6. Step 6: Final answer
    x = 214,269.04

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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.