Home / 403,839.40-557,295.78-222,552.76

Finding the Fourth Proportional to 403,839.40, 557,295.78 and 222,552.76

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Solution

The fourth proportional to 403,839.40, 557,295.78 and 222,552.76 is: 307,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,839.40 : 557,295.78 = 222,552.76 : x
  2. Step 2: Convert to fraction form
    403,839.40/557,295.78 = 222,552.76/x
  3. Step 3: Cross multiply
    403,839.40x = 557,295.78 × 222,552.76
  4. Step 4: Simplify right side
    403,839.40x = 124,027,713,975.35
  5. Step 5: Solve for x
    x = 124,027,713,975.35/403,839.40
  6. Step 6: Final answer
    x = 307,121.38

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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.