Finding the Fourth Proportional to 254,695.23, 382,020.84 and 86,211.95
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Solution
The fourth proportional to 254,695.23, 382,020.84 and 86,211.95 is: 129,310.47
Step by Step Solution
- Step 1: Write the proportion equation
254,695.23 : 382,020.84 = 86,211.95 : x - Step 2: Convert to fraction form
254,695.23/382,020.84 = 86,211.95/x - Step 3: Cross multiply
254,695.23x = 382,020.84 × 86,211.95 - Step 4: Simplify right side
254,695.23x = 32,934,759,646.93 - Step 5: Solve for x
x = 32,934,759,646.93/254,695.23 - Step 6: Final answer
x = 129,310.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.