Home / 221,943.96-306,285.72-131,297.60

Finding the Fourth Proportional to 221,943.96, 306,285.72 and 131,297.60

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Solution

The fourth proportional to 221,943.96, 306,285.72 and 131,297.60 is: 181,192.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,943.96 : 306,285.72 = 131,297.60 : x
  2. Step 2: Convert to fraction form
    221,943.96/306,285.72 = 131,297.60/x
  3. Step 3: Cross multiply
    221,943.96x = 306,285.72 × 131,297.60
  4. Step 4: Simplify right side
    221,943.96x = 40,214,578,418.84
  5. Step 5: Solve for x
    x = 40,214,578,418.84/221,943.96
  6. Step 6: Final answer
    x = 181,192.49

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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.