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Finding the Fourth Proportional to 199,616.20, 299,222.70 and 99,622.60

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Solution

The fourth proportional to 199,616.20, 299,222.70 and 99,622.60 is: 149,333.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,616.20 : 299,222.70 = 99,622.60 : x
  2. Step 2: Convert to fraction form
    199,616.20/299,222.70 = 99,622.60/x
  3. Step 3: Cross multiply
    199,616.20x = 299,222.70 × 99,622.60
  4. Step 4: Simplify right side
    199,616.20x = 29,809,343,353.02
  5. Step 5: Solve for x
    x = 29,809,343,353.02/199,616.20
  6. Step 6: Final answer
    x = 149,333.29

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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.