Finding the Fourth Proportional to 225,876.76, 311,719.71 and 135,215.19
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Solution
The fourth proportional to 225,876.76, 311,719.71 and 135,215.19 is: 186,602.82
Step by Step Solution
- Step 1: Write the proportion equation
225,876.76 : 311,719.71 = 135,215.19 : x - Step 2: Convert to fraction form
225,876.76/311,719.71 = 135,215.19/x - Step 3: Cross multiply
225,876.76x = 311,719.71 × 135,215.19 - Step 4: Simplify right side
225,876.76x = 42,149,239,814.39 - Step 5: Solve for x
x = 42,149,239,814.39/225,876.76 - Step 6: Final answer
x = 186,602.82
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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.