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Finding the Fourth Proportional to 199,410.56, 299,051.15 and 66,255.07

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Solution

The fourth proportional to 199,410.56, 299,051.15 and 66,255.07 is: 99,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,410.56 : 299,051.15 = 66,255.07 : x
  2. Step 2: Convert to fraction form
    199,410.56/299,051.15 = 66,255.07/x
  3. Step 3: Cross multiply
    199,410.56x = 299,051.15 × 66,255.07
  4. Step 4: Simplify right side
    199,410.56x = 19,813,653,797.93
  5. Step 5: Solve for x
    x = 19,813,653,797.93/199,410.56
  6. Step 6: Final answer
    x = 99,361.10

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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.