Home / 222,363.45-306,861.75-120,389.00

Finding the Fourth Proportional to 222,363.45, 306,861.75 and 120,389.00

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Solution

The fourth proportional to 222,363.45, 306,861.75 and 120,389.00 is: 166,136.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,363.45 : 306,861.75 = 120,389.00 : x
  2. Step 2: Convert to fraction form
    222,363.45/306,861.75 = 120,389.00/x
  3. Step 3: Cross multiply
    222,363.45x = 306,861.75 × 120,389.00
  4. Step 4: Simplify right side
    222,363.45x = 36,942,777,686.44
  5. Step 5: Solve for x
    x = 36,942,777,686.44/222,363.45
  6. Step 6: Final answer
    x = 166,136.92

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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.