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Finding the Fourth Proportional to 351,999.02, 485,728.62 and 199,029.71

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Solution

The fourth proportional to 351,999.02, 485,728.62 and 199,029.71 is: 274,644.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,999.02 : 485,728.62 = 199,029.71 : x
  2. Step 2: Convert to fraction form
    351,999.02/485,728.62 = 199,029.71/x
  3. Step 3: Cross multiply
    351,999.02x = 485,728.62 × 199,029.71
  4. Step 4: Simplify right side
    351,999.02x = 96,674,426,845.26
  5. Step 5: Solve for x
    x = 96,674,426,845.26/351,999.02
  6. Step 6: Final answer
    x = 274,644.02

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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.