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Finding the Fourth Proportional to 190,404.42, 285,630.93 and 63,990.42

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Solution

The fourth proportional to 190,404.42, 285,630.93 and 63,990.42 is: 95,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,404.42 : 285,630.93 = 63,990.42 : x
  2. Step 2: Convert to fraction form
    190,404.42/285,630.93 = 63,990.42/x
  3. Step 3: Cross multiply
    190,404.42x = 285,630.93 × 63,990.42
  4. Step 4: Simplify right side
    190,404.42x = 18,277,643,175.69
  5. Step 5: Solve for x
    x = 18,277,643,175.69/190,404.42
  6. Step 6: Final answer
    x = 95,993.80

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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.