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Finding the Fourth Proportional to 401,477.28, 554,038.59 and 222,629.28

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Solution

The fourth proportional to 401,477.28, 554,038.59 and 222,629.28 is: 307,228.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,477.28 : 554,038.59 = 222,629.28 : x
  2. Step 2: Convert to fraction form
    401,477.28/554,038.59 = 222,629.28/x
  3. Step 3: Cross multiply
    401,477.28x = 554,038.59 × 222,629.28
  4. Step 4: Simplify right side
    401,477.28x = 123,345,212,383.92
  5. Step 5: Solve for x
    x = 123,345,212,383.92/401,477.28
  6. Step 6: Final answer
    x = 307,228.38

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1.5x scale

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.