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Finding the Fourth Proportional to 332,991.60, 499,487.40 and 200,281.20

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Solution

The fourth proportional to 332,991.60, 499,487.40 and 200,281.20 is: 300,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,991.60 : 499,487.40 = 200,281.20 : x
  2. Step 2: Convert to fraction form
    332,991.60/499,487.40 = 200,281.20/x
  3. Step 3: Cross multiply
    332,991.60x = 499,487.40 × 200,281.20
  4. Step 4: Simplify right side
    332,991.60x = 100,037,935,856.88
  5. Step 5: Solve for x
    x = 100,037,935,856.88/332,991.60
  6. Step 6: Final answer
    x = 300,421.80

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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.