Finding the Fourth Proportional to 207,929.40, 286,936.14 and 117,284.06
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Solution
The fourth proportional to 207,929.40, 286,936.14 and 117,284.06 is: 161,848.37
Step by Step Solution
- Step 1: Write the proportion equation
207,929.40 : 286,936.14 = 117,284.06 : x - Step 2: Convert to fraction form
207,929.40/286,936.14 = 117,284.06/x - Step 3: Cross multiply
207,929.40x = 286,936.14 × 117,284.06 - Step 4: Simplify right side
207,929.40x = 33,653,035,459.93 - Step 5: Solve for x
x = 33,653,035,459.93/207,929.40 - Step 6: Final answer
x = 161,848.37
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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.