Finding the Fourth Proportional to 214,590.96, 296,143.20 and 129,691.44
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Solution
The fourth proportional to 214,590.96, 296,143.20 and 129,691.44 is: 178,978.83
Step by Step Solution
- Step 1: Write the proportion equation
214,590.96 : 296,143.20 = 129,691.44 : x - Step 2: Convert to fraction form
214,590.96/296,143.20 = 129,691.44/x - Step 3: Cross multiply
214,590.96x = 296,143.20 × 129,691.44 - Step 4: Simplify right side
214,590.96x = 38,407,238,054.21 - Step 5: Solve for x
x = 38,407,238,054.21/214,590.96 - Step 6: Final answer
x = 178,978.83
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1.5x scale
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.