Finding the Fourth Proportional to 207,909.28, 286,913.41 and 117,265.99
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Solution
The fourth proportional to 207,909.28, 286,913.41 and 117,265.99 is: 161,826.28
Step by Step Solution
- Step 1: Write the proportion equation
207,909.28 : 286,913.41 = 117,265.99 : x - Step 2: Convert to fraction form
207,909.28/286,913.41 = 117,265.99/x - Step 3: Cross multiply
207,909.28x = 286,913.41 × 117,265.99 - Step 4: Simplify right side
207,909.28x = 33,645,185,067.93 - Step 5: Solve for x
x = 33,645,185,067.93/207,909.28 - Step 6: Final answer
x = 161,826.28
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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.