Home / 403,945.07-557,418.78-222,647.00

Finding the Fourth Proportional to 403,945.07, 557,418.78 and 222,647.00

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Solution

The fourth proportional to 403,945.07, 557,418.78 and 222,647.00 is: 307,238.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,945.07 : 557,418.78 = 222,647.00 : x
  2. Step 2: Convert to fraction form
    403,945.07/557,418.78 = 222,647.00/x
  3. Step 3: Cross multiply
    403,945.07x = 557,418.78 × 222,647.00
  4. Step 4: Simplify right side
    403,945.07x = 124,107,616,323.57
  5. Step 5: Solve for x
    x = 124,107,616,323.57/403,945.07
  6. Step 6: Final answer
    x = 307,238.85

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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.