Home / 403,880.45-557,333.36-222,556.28

Finding the Fourth Proportional to 403,880.45, 557,333.36 and 222,556.28

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Solution

The fourth proportional to 403,880.45, 557,333.36 and 222,556.28 is: 307,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,880.45 : 557,333.36 = 222,556.28 : x
  2. Step 2: Convert to fraction form
    403,880.45/557,333.36 = 222,556.28/x
  3. Step 3: Cross multiply
    403,880.45x = 557,333.36 × 222,556.28
  4. Step 4: Simplify right side
    403,880.45x = 124,038,039,321.50
  5. Step 5: Solve for x
    x = 124,038,039,321.50/403,880.45
  6. Step 6: Final answer
    x = 307,115.73

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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.