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Finding the Fourth Proportional to 349,892.36, 482,917.38 and 219,130.64

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Solution

The fourth proportional to 349,892.36, 482,917.38 and 219,130.64 is: 302,441.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,892.36 : 482,917.38 = 219,130.64 : x
  2. Step 2: Convert to fraction form
    349,892.36/482,917.38 = 219,130.64/x
  3. Step 3: Cross multiply
    349,892.36x = 482,917.38 × 219,130.64
  4. Step 4: Simplify right side
    349,892.36x = 105,821,994,546.52
  5. Step 5: Solve for x
    x = 105,821,994,546.52/349,892.36
  6. Step 6: Final answer
    x = 302,441.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.