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Finding the Fourth Proportional to 303,943.34, 455,847.82 and 87,755.10

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Solution

The fourth proportional to 303,943.34, 455,847.82 and 87,755.10 is: 131,613.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,943.34 : 455,847.82 = 87,755.10 : x
  2. Step 2: Convert to fraction form
    303,943.34/455,847.82 = 87,755.10/x
  3. Step 3: Cross multiply
    303,943.34x = 455,847.82 × 87,755.10
  4. Step 4: Simplify right side
    303,943.34x = 40,002,971,028.88
  5. Step 5: Solve for x
    x = 40,002,971,028.88/303,943.34
  6. Step 6: Final answer
    x = 131,613.25

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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.