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Finding the Fourth Proportional to 351,509.55, 485,077.19 and 190,363.29

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Solution

The fourth proportional to 351,509.55, 485,077.19 and 190,363.29 is: 262,698.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,509.55 : 485,077.19 = 190,363.29 : x
  2. Step 2: Convert to fraction form
    351,509.55/485,077.19 = 190,363.29/x
  3. Step 3: Cross multiply
    351,509.55x = 485,077.19 × 190,363.29
  4. Step 4: Simplify right side
    351,509.55x = 92,340,888,840.54
  5. Step 5: Solve for x
    x = 92,340,888,840.54/351,509.55
  6. Step 6: Final answer
    x = 262,698.09

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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.