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Finding the Fourth Proportional to 618,847.40, 928,271.73 and 169,571.90

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Solution

The fourth proportional to 618,847.40, 928,271.73 and 169,571.90 is: 254,358.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,847.40 : 928,271.73 = 169,571.90 : x
  2. Step 2: Convert to fraction form
    618,847.40/928,271.73 = 169,571.90/x
  3. Step 3: Cross multiply
    618,847.40x = 928,271.73 × 169,571.90
  4. Step 4: Simplify right side
    618,847.40x = 157,408,800,972.39
  5. Step 5: Solve for x
    x = 157,408,800,972.39/618,847.40
  6. Step 6: Final answer
    x = 254,358.02

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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.