Home / 401,528.11-554,099.26-220,238.44

Finding the Fourth Proportional to 401,528.11, 554,099.26 and 220,238.44

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Solution

The fourth proportional to 401,528.11, 554,099.26 and 220,238.44 is: 303,923.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,528.11 : 554,099.26 = 220,238.44 : x
  2. Step 2: Convert to fraction form
    401,528.11/554,099.26 = 220,238.44/x
  3. Step 3: Cross multiply
    401,528.11x = 554,099.26 × 220,238.44
  4. Step 4: Simplify right side
    401,528.11x = 122,033,956,627.55
  5. Step 5: Solve for x
    x = 122,033,956,627.55/401,528.11
  6. Step 6: Final answer
    x = 303,923.82

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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.