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Finding the Fourth Proportional to 351,999.53, 485,729.31 and 199,030.22

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Solution

The fourth proportional to 351,999.53, 485,729.31 and 199,030.22 is: 274,644.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,999.53 : 485,729.31 = 199,030.22 : x
  2. Step 2: Convert to fraction form
    351,999.53/485,729.31 = 199,030.22/x
  3. Step 3: Cross multiply
    351,999.53x = 485,729.31 × 199,030.22
  4. Step 4: Simplify right side
    351,999.53x = 96,674,808,005.95
  5. Step 5: Solve for x
    x = 96,674,808,005.95/351,999.53
  6. Step 6: Final answer
    x = 274,644.71

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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.