Finding the Fourth Proportional to 207,969.13, 286,997.41 and 112,475.80
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Solution
The fourth proportional to 207,969.13, 286,997.41 and 112,475.80 is: 155,216.61
Step by Step Solution
- Step 1: Write the proportion equation
207,969.13 : 286,997.41 = 112,475.80 : x - Step 2: Convert to fraction form
207,969.13/286,997.41 = 112,475.80/x - Step 3: Cross multiply
207,969.13x = 286,997.41 × 112,475.80 - Step 4: Simplify right side
207,969.13x = 32,280,263,287.68 - Step 5: Solve for x
x = 32,280,263,287.68/207,969.13 - Step 6: Final answer
x = 155,216.61
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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.