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Finding the Fourth Proportional to 299,349.60, 447,930.90 and 220,617.60

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Solution

The fourth proportional to 299,349.60, 447,930.90 and 220,617.60 is: 330,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,349.60 : 447,930.90 = 220,617.60 : x
  2. Step 2: Convert to fraction form
    299,349.60/447,930.90 = 220,617.60/x
  3. Step 3: Cross multiply
    299,349.60x = 447,930.90 × 220,617.60
  4. Step 4: Simplify right side
    299,349.60x = 98,821,440,123.84
  5. Step 5: Solve for x
    x = 98,821,440,123.84/299,349.60
  6. Step 6: Final answer
    x = 330,120.50

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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.