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Finding the Fourth Proportional to 338,251.56, 507,401.01 and 135,847.68

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Solution

The fourth proportional to 338,251.56, 507,401.01 and 135,847.68 is: 203,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,251.56 : 507,401.01 = 135,847.68 : x
  2. Step 2: Convert to fraction form
    338,251.56/507,401.01 = 135,847.68/x
  3. Step 3: Cross multiply
    338,251.56x = 507,401.01 × 135,847.68
  4. Step 4: Simplify right side
    338,251.56x = 68,929,250,038.16
  5. Step 5: Solve for x
    x = 68,929,250,038.16/338,251.56
  6. Step 6: Final answer
    x = 203,781.03

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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.