Finding the Fourth Proportional to 353,231.21, 487,471.86 and 202,357.37
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Solution
The fourth proportional to 353,231.21, 487,471.86 and 202,357.37 is: 279,260.49
Step by Step Solution
- Step 1: Write the proportion equation
353,231.21 : 487,471.86 = 202,357.37 : x - Step 2: Convert to fraction form
353,231.21/487,471.86 = 202,357.37/x - Step 3: Cross multiply
353,231.21x = 487,471.86 × 202,357.37 - Step 4: Simplify right side
353,231.21x = 98,643,521,101.25 - Step 5: Solve for x
x = 98,643,521,101.25/353,231.21 - Step 6: Final answer
x = 279,260.49
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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.