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Finding the Fourth Proportional to 349,296, 482,028.48 and 190,320

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Solution

The fourth proportional to 349,296, 482,028.48 and 190,320 is: 262,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,296 : 482,028.48 = 190,320 : x
  2. Step 2: Convert to fraction form
    349,296/482,028.48 = 190,320/x
  3. Step 3: Cross multiply
    349,296x = 482,028.48 × 190,320
  4. Step 4: Simplify right side
    349,296x = 91,739,660,313.60
  5. Step 5: Solve for x
    x = 91,739,660,313.60/349,296
  6. Step 6: Final answer
    x = 262,641.60

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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.