Finding the Fourth Proportional to 225,713.01, 311,432.79 and 153,125.81
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Solution
The fourth proportional to 225,713.01, 311,432.79 and 153,125.81 is: 211,278.90
Step by Step Solution
- Step 1: Write the proportion equation
225,713.01 : 311,432.79 = 153,125.81 : x - Step 2: Convert to fraction form
225,713.01/311,432.79 = 153,125.81/x - Step 3: Cross multiply
225,713.01x = 311,432.79 × 153,125.81 - Step 4: Simplify right side
225,713.01x = 47,688,396,672.15 - Step 5: Solve for x
x = 47,688,396,672.15/225,713.01 - Step 6: Final answer
x = 211,278.90
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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.