Home / 403,840.40-557,297.16-222,553.76

Finding the Fourth Proportional to 403,840.40, 557,297.16 and 222,553.76

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Solution

The fourth proportional to 403,840.40, 557,297.16 and 222,553.76 is: 307,122.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,840.40 : 557,297.16 = 222,553.76 : x
  2. Step 2: Convert to fraction form
    403,840.40/557,297.16 = 222,553.76/x
  3. Step 3: Cross multiply
    403,840.40x = 557,297.16 × 222,553.76
  4. Step 4: Simplify right side
    403,840.40x = 124,028,578,395.32
  5. Step 5: Solve for x
    x = 124,028,578,395.32/403,840.40
  6. Step 6: Final answer
    x = 307,122.76

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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.