Finding the Fourth Proportional to 309,754.93, 427,520.33 and 202,416.97
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Solution
The fourth proportional to 309,754.93, 427,520.33 and 202,416.97 is: 279,373.66
Step by Step Solution
- Step 1: Write the proportion equation
309,754.93 : 427,520.33 = 202,416.97 : x - Step 2: Convert to fraction form
309,754.93/427,520.33 = 202,416.97/x - Step 3: Cross multiply
309,754.93x = 427,520.33 × 202,416.97 - Step 4: Simplify right side
309,754.93x = 86,537,369,812.00 - Step 5: Solve for x
x = 86,537,369,812.00/309,754.93 - Step 6: Final answer
x = 279,373.66
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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.