Finding the Fourth Proportional to 200,971.84, 277,284.36 and 129,393.28
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Solution
The fourth proportional to 200,971.84, 277,284.36 and 129,393.28 is: 178,526.17
Step by Step Solution
- Step 1: Write the proportion equation
200,971.84 : 277,284.36 = 129,393.28 : x - Step 2: Convert to fraction form
200,971.84/277,284.36 = 129,393.28/x - Step 3: Cross multiply
200,971.84x = 277,284.36 × 129,393.28 - Step 4: Simplify right side
200,971.84x = 35,878,732,833.10 - Step 5: Solve for x
x = 35,878,732,833.10/200,971.84 - Step 6: Final answer
x = 178,526.17
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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.