Finding the Fourth Proportional to 386,805.74, 533,783.94 and 214,713.68
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Solution
The fourth proportional to 386,805.74, 533,783.94 and 214,713.68 is: 296,300.45
Step by Step Solution
- Step 1: Write the proportion equation
386,805.74 : 533,783.94 = 214,713.68 : x - Step 2: Convert to fraction form
386,805.74/533,783.94 = 214,713.68/x - Step 3: Cross multiply
386,805.74x = 533,783.94 × 214,713.68 - Step 4: Simplify right side
386,805.74x = 114,610,714,082.30 - Step 5: Solve for x
x = 114,610,714,082.30/386,805.74 - Step 6: Final answer
x = 296,300.45
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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.