Finding the Fourth Proportional to 197,272.36, 272,221.86 and 112,373.80
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Solution
The fourth proportional to 197,272.36, 272,221.86 and 112,373.80 is: 155,067.87
Step by Step Solution
- Step 1: Write the proportion equation
197,272.36 : 272,221.86 = 112,373.80 : x - Step 2: Convert to fraction form
197,272.36/272,221.86 = 112,373.80/x - Step 3: Cross multiply
197,272.36x = 272,221.86 × 112,373.80 - Step 4: Simplify right side
197,272.36x = 30,590,604,851.27 - Step 5: Solve for x
x = 30,590,604,851.27/197,272.36 - Step 6: Final answer
x = 155,067.87
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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.