Home / 403,842.18-557,305.86-222,560.58

Finding the Fourth Proportional to 403,842.18, 557,305.86 and 222,560.58

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Solution

The fourth proportional to 403,842.18, 557,305.86 and 222,560.58 is: 307,135.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,842.18 : 557,305.86 = 222,560.58 : x
  2. Step 2: Convert to fraction form
    403,842.18/557,305.86 = 222,560.58/x
  3. Step 3: Cross multiply
    403,842.18x = 557,305.86 × 222,560.58
  4. Step 4: Simplify right side
    403,842.18x = 124,034,315,439.00
  5. Step 5: Solve for x
    x = 124,034,315,439.00/403,842.18
  6. Step 6: Final answer
    x = 307,135.61

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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.