Finding the Fourth Proportional to 207,537.12, 286,381.80 and 122,637.96
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Solution
The fourth proportional to 207,537.12, 286,381.80 and 122,637.96 is: 169,228.91
Step by Step Solution
- Step 1: Write the proportion equation
207,537.12 : 286,381.80 = 122,637.96 : x - Step 2: Convert to fraction form
207,537.12/286,381.80 = 122,637.96/x - Step 3: Cross multiply
207,537.12x = 286,381.80 × 122,637.96 - Step 4: Simplify right side
207,537.12x = 35,121,279,733.13 - Step 5: Solve for x
x = 35,121,279,733.13/207,537.12 - Step 6: Final answer
x = 169,228.91
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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.