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Finding the Fourth Proportional to 352,435.86, 486,245.70 and 199,458.84

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Solution

The fourth proportional to 352,435.86, 486,245.70 and 199,458.84 is: 275,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,435.86 : 486,245.70 = 199,458.84 : x
  2. Step 2: Convert to fraction form
    352,435.86/486,245.70 = 199,458.84/x
  3. Step 3: Cross multiply
    352,435.86x = 486,245.70 × 199,458.84
  4. Step 4: Simplify right side
    352,435.86x = 96,986,003,276.99
  5. Step 5: Solve for x
    x = 96,986,003,276.99/352,435.86
  6. Step 6: Final answer
    x = 275,187.67

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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.