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Finding the Fourth Proportional to 354,350.96, 531,775.52 and 320,471.60

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Solution

The fourth proportional to 354,350.96, 531,775.52 and 320,471.60 is: 480,932.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,350.96 : 531,775.52 = 320,471.60 : x
  2. Step 2: Convert to fraction form
    354,350.96/531,775.52 = 320,471.60/x
  3. Step 3: Cross multiply
    354,350.96x = 531,775.52 × 320,471.60
  4. Step 4: Simplify right side
    354,350.96x = 170,418,951,735.23
  5. Step 5: Solve for x
    x = 170,418,951,735.23/354,350.96
  6. Step 6: Final answer
    x = 480,932.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.