Home / 222,012.21-306,404.91-145,595.61

Finding the Fourth Proportional to 222,012.21, 306,404.91 and 145,595.61

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Solution

The fourth proportional to 222,012.21, 306,404.91 and 145,595.61 is: 200,940.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,012.21 : 306,404.91 = 145,595.61 : x
  2. Step 2: Convert to fraction form
    222,012.21/306,404.91 = 145,595.61/x
  3. Step 3: Cross multiply
    222,012.21x = 306,404.91 × 145,595.61
  4. Step 4: Simplify right side
    222,012.21x = 44,611,209,778.45
  5. Step 5: Solve for x
    x = 44,611,209,778.45/222,012.21
  6. Step 6: Final answer
    x = 200,940.34

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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.