Finding the Fourth Proportional to 403,879.21, 557,330.61 and 222,590.59
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Solution
The fourth proportional to 403,879.21, 557,330.61 and 222,590.59 is: 307,162.50
Step by Step Solution
- Step 1: Write the proportion equation
403,879.21 : 557,330.61 = 222,590.59 : x - Step 2: Convert to fraction form
403,879.21/557,330.61 = 222,590.59/x - Step 3: Cross multiply
403,879.21x = 557,330.61 × 222,590.59 - Step 4: Simplify right side
403,879.21x = 124,056,549,304.96 - Step 5: Solve for x
x = 124,056,549,304.96/403,879.21 - Step 6: Final answer
x = 307,162.50
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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.