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Finding the Fourth Proportional to 401,077.80, 601,616.70 and 251,778.60

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Solution

The fourth proportional to 401,077.80, 601,616.70 and 251,778.60 is: 377,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,077.80 : 601,616.70 = 251,778.60 : x
  2. Step 2: Convert to fraction form
    401,077.80/601,616.70 = 251,778.60/x
  3. Step 3: Cross multiply
    401,077.80x = 601,616.70 × 251,778.60
  4. Step 4: Simplify right side
    401,077.80x = 151,474,210,462.62
  5. Step 5: Solve for x
    x = 151,474,210,462.62/401,077.80
  6. Step 6: Final answer
    x = 377,667.90

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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.