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Finding the Fourth Proportional to 192,474.40, 288,020.40 and 130,266.40

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Solution

The fourth proportional to 192,474.40, 288,020.40 and 130,266.40 is: 194,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,474.40 : 288,020.40 = 130,266.40 : x
  2. Step 2: Convert to fraction form
    192,474.40/288,020.40 = 130,266.40/x
  3. Step 3: Cross multiply
    192,474.40x = 288,020.40 × 130,266.40
  4. Step 4: Simplify right side
    192,474.40x = 37,519,380,634.56
  5. Step 5: Solve for x
    x = 37,519,380,634.56/192,474.40
  6. Step 6: Final answer
    x = 194,931.80

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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.