Home / 220,161.45-303,915.81-148,638.36

Finding the Fourth Proportional to 220,161.45, 303,915.81 and 148,638.36

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Solution

The fourth proportional to 220,161.45, 303,915.81 and 148,638.36 is: 205,183.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,161.45 : 303,915.81 = 148,638.36 : x
  2. Step 2: Convert to fraction form
    220,161.45/303,915.81 = 148,638.36/x
  3. Step 3: Cross multiply
    220,161.45x = 303,915.81 × 148,638.36
  4. Step 4: Simplify right side
    220,161.45x = 45,173,547,576.47
  5. Step 5: Solve for x
    x = 45,173,547,576.47/220,161.45
  6. Step 6: Final answer
    x = 205,183.73

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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.