Finding the Fourth Proportional to 255,027.78, 382,377.64 and 121,905.09
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Solution
The fourth proportional to 255,027.78, 382,377.64 and 121,905.09 is: 182,779.23
Step by Step Solution
- Step 1: Write the proportion equation
255,027.78 : 382,377.64 = 121,905.09 : x - Step 2: Convert to fraction form
255,027.78/382,377.64 = 121,905.09/x - Step 3: Cross multiply
255,027.78x = 382,377.64 × 121,905.09 - Step 4: Simplify right side
255,027.78x = 46,613,780,618.19 - Step 5: Solve for x
x = 46,613,780,618.19/255,027.78 - Step 6: Final answer
x = 182,779.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.