Finding the Fourth Proportional to 231,972.21, 320,106.49 and 136,460.45
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Solution
The fourth proportional to 231,972.21, 320,106.49 and 136,460.45 is: 188,306.50
Step by Step Solution
- Step 1: Write the proportion equation
231,972.21 : 320,106.49 = 136,460.45 : x - Step 2: Convert to fraction form
231,972.21/320,106.49 = 136,460.45/x - Step 3: Cross multiply
231,972.21x = 320,106.49 × 136,460.45 - Step 4: Simplify right side
231,972.21x = 43,681,875,673.32 - Step 5: Solve for x
x = 43,681,875,673.32/231,972.21 - Step 6: Final answer
x = 188,306.50
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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.