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Finding the Fourth Proportional to 309,331.95, 463,997.57 and 84,694.11

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Solution

The fourth proportional to 309,331.95, 463,997.57 and 84,694.11 is: 127,041.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,331.95 : 463,997.57 = 84,694.11 : x
  2. Step 2: Convert to fraction form
    309,331.95/463,997.57 = 84,694.11/x
  3. Step 3: Cross multiply
    309,331.95x = 463,997.57 × 84,694.11
  4. Step 4: Simplify right side
    309,331.95x = 39,297,860,809.84
  5. Step 5: Solve for x
    x = 39,297,860,809.84/309,331.95
  6. Step 6: Final answer
    x = 127,041.07

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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.