Finding the Fourth Proportional to 201,085.78, 277,468.27 and 115,031.08
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Solution
The fourth proportional to 201,085.78, 277,468.27 and 115,031.08 is: 158,725.67
Step by Step Solution
- Step 1: Write the proportion equation
201,085.78 : 277,468.27 = 115,031.08 : x - Step 2: Convert to fraction form
201,085.78/277,468.27 = 115,031.08/x - Step 3: Cross multiply
201,085.78x = 277,468.27 × 115,031.08 - Step 4: Simplify right side
201,085.78x = 31,917,474,763.83 - Step 5: Solve for x
x = 31,917,474,763.83/201,085.78 - Step 6: Final answer
x = 158,725.67
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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.