Home / 382,015.20-572,604.30-192,172.80

Finding the Fourth Proportional to 382,015.20, 572,604.30 and 192,172.80

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Solution

The fourth proportional to 382,015.20, 572,604.30 and 192,172.80 is: 288,048.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,015.20 : 572,604.30 = 192,172.80 : x
  2. Step 2: Convert to fraction form
    382,015.20/572,604.30 = 192,172.80/x
  3. Step 3: Cross multiply
    382,015.20x = 572,604.30 × 192,172.80
  4. Step 4: Simplify right side
    382,015.20x = 110,038,971,623.04
  5. Step 5: Solve for x
    x = 110,038,971,623.04/382,015.20
  6. Step 6: Final answer
    x = 288,048.67

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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.