Home / 403,878.45-557,330.61-222,554.28

Finding the Fourth Proportional to 403,878.45, 557,330.61 and 222,554.28

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Solution

The fourth proportional to 403,878.45, 557,330.61 and 222,554.28 is: 307,112.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,878.45 : 557,330.61 = 222,554.28 : x
  2. Step 2: Convert to fraction form
    403,878.45/557,330.61 = 222,554.28/x
  3. Step 3: Cross multiply
    403,878.45x = 557,330.61 × 222,554.28
  4. Step 4: Simplify right side
    403,878.45x = 124,036,311,517.74
  5. Step 5: Solve for x
    x = 124,036,311,517.74/403,878.45
  6. Step 6: Final answer
    x = 307,112.97

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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.