Finding the Fourth Proportional to 236,917.02, 326,936.61 and 129,486.18
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Solution
The fourth proportional to 236,917.02, 326,936.61 and 129,486.18 is: 178,686.08
Step by Step Solution
- Step 1: Write the proportion equation
236,917.02 : 326,936.61 = 129,486.18 : x - Step 2: Convert to fraction form
236,917.02/326,936.61 = 129,486.18/x - Step 3: Cross multiply
236,917.02x = 326,936.61 × 129,486.18 - Step 4: Simplify right side
236,917.02x = 42,333,772,731.05 - Step 5: Solve for x
x = 42,333,772,731.05/236,917.02 - Step 6: Final answer
x = 178,686.08
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1.5x scale
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.