Finding the Fourth Proportional to 389,502, 537,512.76 and 210,654
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Solution
The fourth proportional to 389,502, 537,512.76 and 210,654 is: 290,702.52
Step by Step Solution
- Step 1: Write the proportion equation
389,502 : 537,512.76 = 210,654 : x - Step 2: Convert to fraction form
389,502/537,512.76 = 210,654/x - Step 3: Cross multiply
389,502x = 537,512.76 × 210,654 - Step 4: Simplify right side
389,502x = 113,229,212,945.04 - Step 5: Solve for x
x = 113,229,212,945.04/389,502 - Step 6: Final answer
x = 290,702.52
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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.