Finding the Fourth Proportional to 386,806.24, 533,784.63 and 214,714.18
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Solution
The fourth proportional to 386,806.24, 533,784.63 and 214,714.18 is: 296,301.14
Step by Step Solution
- Step 1: Write the proportion equation
386,806.24 : 533,784.63 = 214,714.18 : x - Step 2: Convert to fraction form
386,806.24/533,784.63 = 214,714.18/x - Step 3: Cross multiply
386,806.24x = 533,784.63 × 214,714.18 - Step 4: Simplify right side
386,806.24x = 114,611,129,127.05 - Step 5: Solve for x
x = 114,611,129,127.05/386,806.24 - Step 6: Final answer
x = 296,301.14
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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.