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Finding the Fourth Proportional to 351,701.38, 485,368.41 and 198,735.67

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Solution

The fourth proportional to 351,701.38, 485,368.41 and 198,735.67 is: 274,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,701.38 : 485,368.41 = 198,735.67 : x
  2. Step 2: Convert to fraction form
    351,701.38/485,368.41 = 198,735.67/x
  3. Step 3: Cross multiply
    351,701.38x = 485,368.41 × 198,735.67
  4. Step 4: Simplify right side
    351,701.38x = 96,460,016,158.18
  5. Step 5: Solve for x
    x = 96,460,016,158.18/351,701.38
  6. Step 6: Final answer
    x = 274,266.81

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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.