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Finding the Fourth Proportional to 199,452.80, 299,193.60 and 66,425.60

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Solution

The fourth proportional to 199,452.80, 299,193.60 and 66,425.60 is: 99,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,452.80 : 299,193.60 = 66,425.60 : x
  2. Step 2: Convert to fraction form
    199,452.80/299,193.60 = 66,425.60/x
  3. Step 3: Cross multiply
    199,452.80x = 299,193.60 × 66,425.60
  4. Step 4: Simplify right side
    199,452.80x = 19,874,114,396.16
  5. Step 5: Solve for x
    x = 19,874,114,396.16/199,452.80
  6. Step 6: Final answer
    x = 99,643.20

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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.