Finding the Fourth Proportional to 386,938.01, 534,007.99 and 214,889.15
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Solution
The fourth proportional to 386,938.01, 534,007.99 and 214,889.15 is: 296,565.65
Step by Step Solution
- Step 1: Write the proportion equation
386,938.01 : 534,007.99 = 214,889.15 : x - Step 2: Convert to fraction form
386,938.01/534,007.99 = 214,889.15/x - Step 3: Cross multiply
386,938.01x = 534,007.99 × 214,889.15 - Step 4: Simplify right side
386,938.01x = 114,752,524,667.94 - Step 5: Solve for x
x = 114,752,524,667.94/386,938.01 - Step 6: Final answer
x = 296,565.65
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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.