Home / 221,850.29-306,216.11-131,237.77

Finding the Fourth Proportional to 221,850.29, 306,216.11 and 131,237.77

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Solution

The fourth proportional to 221,850.29, 306,216.11 and 131,237.77 is: 181,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,850.29 : 306,216.11 = 131,237.77 : x
  2. Step 2: Convert to fraction form
    221,850.29/306,216.11 = 131,237.77/x
  3. Step 3: Cross multiply
    221,850.29x = 306,216.11 × 131,237.77
  4. Step 4: Simplify right side
    221,850.29x = 40,187,119,414.47
  5. Step 5: Solve for x
    x = 40,187,119,414.47/221,850.29
  6. Step 6: Final answer
    x = 181,145.22

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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.