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Finding the Fourth Proportional to 250,821.96, 376,231.91 and 90,860.44

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Solution

The fourth proportional to 250,821.96, 376,231.91 and 90,860.44 is: 136,290.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,821.96 : 376,231.91 = 90,860.44 : x
  2. Step 2: Convert to fraction form
    250,821.96/376,231.91 = 90,860.44/x
  3. Step 3: Cross multiply
    250,821.96x = 376,231.91 × 90,860.44
  4. Step 4: Simplify right side
    250,821.96x = 34,184,595,666.12
  5. Step 5: Solve for x
    x = 34,184,595,666.12/250,821.96
  6. Step 6: Final answer
    x = 136,290.28

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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.