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Finding the Fourth Proportional to 548,048.20, 821,877.90 and 193,073.80

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Solution

The fourth proportional to 548,048.20, 821,877.90 and 193,073.80 is: 289,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,048.20 : 821,877.90 = 193,073.80 : x
  2. Step 2: Convert to fraction form
    548,048.20/821,877.90 = 193,073.80/x
  3. Step 3: Cross multiply
    548,048.20x = 821,877.90 × 193,073.80
  4. Step 4: Simplify right side
    548,048.20x = 158,683,089,289.02
  5. Step 5: Solve for x
    x = 158,683,089,289.02/548,048.20
  6. Step 6: Final answer
    x = 289,542.21

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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.