Finding the Fourth Proportional to 224,749.05, 310,163.09 and 129,255.81
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Solution
The fourth proportional to 224,749.05, 310,163.09 and 129,255.81 is: 178,378.42
Step by Step Solution
- Step 1: Write the proportion equation
224,749.05 : 310,163.09 = 129,255.81 : x - Step 2: Convert to fraction form
224,749.05/310,163.09 = 129,255.81/x - Step 3: Cross multiply
224,749.05x = 310,163.09 × 129,255.81 - Step 4: Simplify right side
224,749.05x = 40,090,381,430.05 - Step 5: Solve for x
x = 40,090,381,430.05/224,749.05 - Step 6: Final answer
x = 178,378.42
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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.