Home / 403,847.90-557,321.78-222,571.50

Finding the Fourth Proportional to 403,847.90, 557,321.78 and 222,571.50

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Solution

The fourth proportional to 403,847.90, 557,321.78 and 222,571.50 is: 307,155.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,847.90 : 557,321.78 = 222,571.50 : x
  2. Step 2: Convert to fraction form
    403,847.90/557,321.78 = 222,571.50/x
  3. Step 3: Cross multiply
    403,847.90x = 557,321.78 × 222,571.50
  4. Step 4: Simplify right side
    403,847.90x = 124,043,943,444.41
  5. Step 5: Solve for x
    x = 124,043,943,444.41/403,847.90
  6. Step 6: Final answer
    x = 307,155.11

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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.