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Finding the Fourth Proportional to 352,347.60, 486,236 and 197,299.20

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Solution

The fourth proportional to 352,347.60, 486,236 and 197,299.20 is: 272,270.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,347.60 : 486,236 = 197,299.20 : x
  2. Step 2: Convert to fraction form
    352,347.60/486,236 = 197,299.20/x
  3. Step 3: Cross multiply
    352,347.60x = 486,236 × 197,299.20
  4. Step 4: Simplify right side
    352,347.60x = 95,933,973,811.20
  5. Step 5: Solve for x
    x = 95,933,973,811.20/352,347.60
  6. Step 6: Final answer
    x = 272,270.83

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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.