Home / 221,850.84-306,216.96-131,238.30

Finding the Fourth Proportional to 221,850.84, 306,216.96 and 131,238.30

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Solution

The fourth proportional to 221,850.84, 306,216.96 and 131,238.30 is: 181,146.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,850.84 : 306,216.96 = 131,238.30 : x
  2. Step 2: Convert to fraction form
    221,850.84/306,216.96 = 131,238.30/x
  3. Step 3: Cross multiply
    221,850.84x = 306,216.96 × 131,238.30
  4. Step 4: Simplify right side
    221,850.84x = 40,187,393,261.57
  5. Step 5: Solve for x
    x = 40,187,393,261.57/221,850.84
  6. Step 6: Final answer
    x = 181,146.00

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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.