Finding the Fourth Proportional to 207,839.09, 286,817.82 and 112,345.79
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Solution
The fourth proportional to 207,839.09, 286,817.82 and 112,345.79 is: 155,037.12
Step by Step Solution
- Step 1: Write the proportion equation
207,839.09 : 286,817.82 = 112,345.79 : x - Step 2: Convert to fraction form
207,839.09/286,817.82 = 112,345.79/x - Step 3: Cross multiply
207,839.09x = 286,817.82 × 112,345.79 - Step 4: Simplify right side
207,839.09x = 32,222,773,139.89 - Step 5: Solve for x
x = 32,222,773,139.89/207,839.09 - Step 6: Final answer
x = 155,037.12
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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.