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Finding the Fourth Proportional to 351,480.85, 485,043.83 and 190,336.07

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Solution

The fourth proportional to 351,480.85, 485,043.83 and 190,336.07 is: 262,663.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,480.85 : 485,043.83 = 190,336.07 : x
  2. Step 2: Convert to fraction form
    351,480.85/485,043.83 = 190,336.07/x
  3. Step 3: Cross multiply
    351,480.85x = 485,043.83 × 190,336.07
  4. Step 4: Simplify right side
    351,480.85x = 92,321,337,354.64
  5. Step 5: Solve for x
    x = 92,321,337,354.64/351,480.85
  6. Step 6: Final answer
    x = 262,663.92

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1.5x scale

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.