Finding the Fourth Proportional to 200,820.84, 277,130.43 and 115,936.08
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Solution
The fourth proportional to 200,820.84, 277,130.43 and 115,936.08 is: 159,990.45
Step by Step Solution
- Step 1: Write the proportion equation
200,820.84 : 277,130.43 = 115,936.08 : x - Step 2: Convert to fraction form
200,820.84/277,130.43 = 115,936.08/x - Step 3: Cross multiply
200,820.84x = 277,130.43 × 115,936.08 - Step 4: Simplify right side
200,820.84x = 32,129,415,702.91 - Step 5: Solve for x
x = 32,129,415,702.91/200,820.84 - Step 6: Final answer
x = 159,990.45
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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.