Home / 222,287.37-306,756.54-120,312.81

Finding the Fourth Proportional to 222,287.37, 306,756.54 and 120,312.81

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Solution

The fourth proportional to 222,287.37, 306,756.54 and 120,312.81 is: 166,031.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,287.37 : 306,756.54 = 120,312.81 : x
  2. Step 2: Convert to fraction form
    222,287.37/306,756.54 = 120,312.81/x
  3. Step 3: Cross multiply
    222,287.37x = 306,756.54 × 120,312.81
  4. Step 4: Simplify right side
    222,287.37x = 36,906,740,450.52
  5. Step 5: Solve for x
    x = 36,906,740,450.52/222,287.37
  6. Step 6: Final answer
    x = 166,031.66

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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.