Finding the Fourth Proportional to 226,707.12, 312,822.81 and 136,043.82
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Solution
The fourth proportional to 226,707.12, 312,822.81 and 136,043.82 is: 187,720.66
Step by Step Solution
- Step 1: Write the proportion equation
226,707.12 : 312,822.81 = 136,043.82 : x - Step 2: Convert to fraction form
226,707.12/312,822.81 = 136,043.82/x - Step 3: Cross multiply
226,707.12x = 312,822.81 × 136,043.82 - Step 4: Simplify right side
226,707.12x = 42,557,610,055.53 - Step 5: Solve for x
x = 42,557,610,055.53/226,707.12 - Step 6: Final answer
x = 187,720.66
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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.