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Finding the Fourth Proportional to 351,465.41, 485,024.57 and 190,320.47

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Solution

The fourth proportional to 351,465.41, 485,024.57 and 190,320.47 is: 262,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,465.41 : 485,024.57 = 190,320.47 : x
  2. Step 2: Convert to fraction form
    351,465.41/485,024.57 = 190,320.47/x
  3. Step 3: Cross multiply
    351,465.41x = 485,024.57 × 190,320.47
  4. Step 4: Simplify right side
    351,465.41x = 92,310,100,747.22
  5. Step 5: Solve for x
    x = 92,310,100,747.22/351,465.41
  6. Step 6: Final answer
    x = 262,643.49

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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.