Finding the Fourth Proportional to 387,921.12, 535,027.56 and 265,486.08
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Solution
The fourth proportional to 387,921.12, 535,027.56 and 265,486.08 is: 366,163.02
Step by Step Solution
- Step 1: Write the proportion equation
387,921.12 : 535,027.56 = 265,486.08 : x - Step 2: Convert to fraction form
387,921.12/535,027.56 = 265,486.08/x - Step 3: Cross multiply
387,921.12x = 535,027.56 × 265,486.08 - Step 4: Simplify right side
387,921.12x = 142,042,369,596.37 - Step 5: Solve for x
x = 142,042,369,596.37/387,921.12 - Step 6: Final answer
x = 366,163.02
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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.