Home / 222,325.22-306,808.17-121,722.50

Finding the Fourth Proportional to 222,325.22, 306,808.17 and 121,722.50

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Solution

The fourth proportional to 222,325.22, 306,808.17 and 121,722.50 is: 167,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,325.22 : 306,808.17 = 121,722.50 : x
  2. Step 2: Convert to fraction form
    222,325.22/306,808.17 = 121,722.50/x
  3. Step 3: Cross multiply
    222,325.22x = 306,808.17 × 121,722.50
  4. Step 4: Simplify right side
    222,325.22x = 37,345,457,472.83
  5. Step 5: Solve for x
    x = 37,345,457,472.83/222,325.22
  6. Step 6: Final answer
    x = 167,976.70

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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.