Finding the Fourth Proportional to 207,984.64, 286,994.11 and 117,335.31
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Solution
The fourth proportional to 207,984.64, 286,994.11 and 117,335.31 is: 161,908.80
Step by Step Solution
- Step 1: Write the proportion equation
207,984.64 : 286,994.11 = 117,335.31 : x - Step 2: Convert to fraction form
207,984.64/286,994.11 = 117,335.31/x - Step 3: Cross multiply
207,984.64x = 286,994.11 × 117,335.31 - Step 4: Simplify right side
207,984.64x = 33,674,542,865.02 - Step 5: Solve for x
x = 33,674,542,865.02/207,984.64 - Step 6: Final answer
x = 161,908.80
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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.