Home / 401,435.37-553,929.89-220,099.58

Finding the Fourth Proportional to 401,435.37, 553,929.89 and 220,099.58

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Solution

The fourth proportional to 401,435.37, 553,929.89 and 220,099.58 is: 303,709.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,435.37 : 553,929.89 = 220,099.58 : x
  2. Step 2: Convert to fraction form
    401,435.37/553,929.89 = 220,099.58/x
  3. Step 3: Cross multiply
    401,435.37x = 553,929.89 × 220,099.58
  4. Step 4: Simplify right side
    401,435.37x = 121,919,735,583.60
  5. Step 5: Solve for x
    x = 121,919,735,583.60/401,435.37
  6. Step 6: Final answer
    x = 303,709.50

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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.