Finding the Fourth Proportional to 187,974.74, 259,381.17 and 107,407.49
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Solution
The fourth proportional to 187,974.74, 259,381.17 and 107,407.49 is: 148,208.63
Step by Step Solution
- Step 1: Write the proportion equation
187,974.74 : 259,381.17 = 107,407.49 : x - Step 2: Convert to fraction form
187,974.74/259,381.17 = 107,407.49/x - Step 3: Cross multiply
187,974.74x = 259,381.17 × 107,407.49 - Step 4: Simplify right side
187,974.74x = 27,859,479,126.06 - Step 5: Solve for x
x = 27,859,479,126.06/187,974.74 - Step 6: Final answer
x = 148,208.63
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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.