Home / 403,926.77-557,415.86-222,639.05

Finding the Fourth Proportional to 403,926.77, 557,415.86 and 222,639.05

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Solution

The fourth proportional to 403,926.77, 557,415.86 and 222,639.05 is: 307,240.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,926.77 : 557,415.86 = 222,639.05 : x
  2. Step 2: Convert to fraction form
    403,926.77/557,415.86 = 222,639.05/x
  3. Step 3: Cross multiply
    403,926.77x = 557,415.86 × 222,639.05
  4. Step 4: Simplify right side
    403,926.77x = 124,102,533,625.06
  5. Step 5: Solve for x
    x = 124,102,533,625.06/403,926.77
  6. Step 6: Final answer
    x = 307,240.18

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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.