Home / 222,099.20-306,494.40-121,496

Finding the Fourth Proportional to 222,099.20, 306,494.40 and 121,496

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Solution

The fourth proportional to 222,099.20, 306,494.40 and 121,496 is: 167,663.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,099.20 : 306,494.40 = 121,496 : x
  2. Step 2: Convert to fraction form
    222,099.20/306,494.40 = 121,496/x
  3. Step 3: Cross multiply
    222,099.20x = 306,494.40 × 121,496
  4. Step 4: Simplify right side
    222,099.20x = 37,237,843,622.40
  5. Step 5: Solve for x
    x = 37,237,843,622.40/222,099.20
  6. Step 6: Final answer
    x = 167,663.11

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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.