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Finding the Fourth Proportional to 245,728.92, 339,119.82 and 150,220.20

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Solution

The fourth proportional to 245,728.92, 339,119.82 and 150,220.20 is: 207,312.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,728.92 : 339,119.82 = 150,220.20 : x
  2. Step 2: Convert to fraction form
    245,728.92/339,119.82 = 150,220.20/x
  3. Step 3: Cross multiply
    245,728.92x = 339,119.82 × 150,220.20
  4. Step 4: Simplify right side
    245,728.92x = 50,942,647,184.36
  5. Step 5: Solve for x
    x = 50,942,647,184.36/245,728.92
  6. Step 6: Final answer
    x = 207,312.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.