Finding the Fourth Proportional to 214,585.24, 295,921.92 and 128,530.48
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Solution
The fourth proportional to 214,585.24, 295,921.92 and 128,530.48 is: 177,248.85
Step by Step Solution
- Step 1: Write the proportion equation
214,585.24 : 295,921.92 = 128,530.48 : x - Step 2: Convert to fraction form
214,585.24/295,921.92 = 128,530.48/x - Step 3: Cross multiply
214,585.24x = 295,921.92 × 128,530.48 - Step 4: Simplify right side
214,585.24x = 38,034,986,420.12 - Step 5: Solve for x
x = 38,034,986,420.12/214,585.24 - Step 6: Final answer
x = 177,248.85
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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.