Finding the Fourth Proportional to 198,655.11, 297,975.99 and 86,335.32
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Solution
The fourth proportional to 198,655.11, 297,975.99 and 86,335.32 is: 129,500.08
Step by Step Solution
- Step 1: Write the proportion equation
198,655.11 : 297,975.99 = 86,335.32 : x - Step 2: Convert to fraction form
198,655.11/297,975.99 = 86,335.32/x - Step 3: Cross multiply
198,655.11x = 297,975.99 × 86,335.32 - Step 4: Simplify right side
198,655.11x = 25,725,852,448.97 - Step 5: Solve for x
x = 25,725,852,448.97/198,655.11 - Step 6: Final answer
x = 129,500.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.