Finding the Fourth Proportional to 386,805.99, 533,784.29 and 214,713.93
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Solution
The fourth proportional to 386,805.99, 533,784.29 and 214,713.93 is: 296,300.79
Step by Step Solution
- Step 1: Write the proportion equation
386,805.99 : 533,784.29 = 214,713.93 : x - Step 2: Convert to fraction form
386,805.99/533,784.29 = 214,713.93/x - Step 3: Cross multiply
386,805.99x = 533,784.29 × 214,713.93 - Step 4: Simplify right side
386,805.99x = 114,610,921,604.59 - Step 5: Solve for x
x = 114,610,921,604.59/386,805.99 - Step 6: Final answer
x = 296,300.79
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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.