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Finding the Fourth Proportional to 190,959.20, 285,855.60 and 148,968.80

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Solution

The fourth proportional to 190,959.20, 285,855.60 and 148,968.80 is: 222,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,959.20 : 285,855.60 = 148,968.80 : x
  2. Step 2: Convert to fraction form
    190,959.20/285,855.60 = 148,968.80/x
  3. Step 3: Cross multiply
    190,959.20x = 285,855.60 × 148,968.80
  4. Step 4: Simplify right side
    190,959.20x = 42,583,565,705.28
  5. Step 5: Solve for x
    x = 42,583,565,705.28/190,959.20
  6. Step 6: Final answer
    x = 222,998.24

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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.