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Finding the Fourth Proportional to 199,404.78, 298,995.02 and 66,213.76

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Solution

The fourth proportional to 199,404.78, 298,995.02 and 66,213.76 is: 99,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,404.78 : 298,995.02 = 66,213.76 : x
  2. Step 2: Convert to fraction form
    199,404.78/298,995.02 = 66,213.76/x
  3. Step 3: Cross multiply
    199,404.78x = 298,995.02 × 66,213.76
  4. Step 4: Simplify right side
    199,404.78x = 19,797,584,495.48
  5. Step 5: Solve for x
    x = 19,797,584,495.48/199,404.78
  6. Step 6: Final answer
    x = 99,283.40

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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.