Home / 221,942.50-306,288.21-121,346.98

Finding the Fourth Proportional to 221,942.50, 306,288.21 and 121,346.98

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Solution

The fourth proportional to 221,942.50, 306,288.21 and 121,346.98 is: 167,462.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,942.50 : 306,288.21 = 121,346.98 : x
  2. Step 2: Convert to fraction form
    221,942.50/306,288.21 = 121,346.98/x
  3. Step 3: Cross multiply
    221,942.50x = 306,288.21 × 121,346.98
  4. Step 4: Simplify right side
    221,942.50x = 37,167,149,293.11
  5. Step 5: Solve for x
    x = 37,167,149,293.11/221,942.50
  6. Step 6: Final answer
    x = 167,462.97

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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.