Finding the Fourth Proportional to 393,483.08, 543,008.34 and 214,638.92
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Solution
The fourth proportional to 393,483.08, 543,008.34 and 214,638.92 is: 296,202.63
Step by Step Solution
- Step 1: Write the proportion equation
393,483.08 : 543,008.34 = 214,638.92 : x - Step 2: Convert to fraction form
393,483.08/543,008.34 = 214,638.92/x - Step 3: Cross multiply
393,483.08x = 543,008.34 × 214,638.92 - Step 4: Simplify right side
393,483.08x = 116,550,723,648.59 - Step 5: Solve for x
x = 116,550,723,648.59/393,483.08 - Step 6: Final answer
x = 296,202.63
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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.