Home / 221,226.21-305,592.68-173,431.55

Finding the Fourth Proportional to 221,226.21, 305,592.68 and 173,431.55

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Solution

The fourth proportional to 221,226.21, 305,592.68 and 173,431.55 is: 239,571.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,226.21 : 305,592.68 = 173,431.55 : x
  2. Step 2: Convert to fraction form
    221,226.21/305,592.68 = 173,431.55/x
  3. Step 3: Cross multiply
    221,226.21x = 305,592.68 × 173,431.55
  4. Step 4: Simplify right side
    221,226.21x = 52,999,411,604.80
  5. Step 5: Solve for x
    x = 52,999,411,604.80/221,226.21
  6. Step 6: Final answer
    x = 239,571.13

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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.