Finding the Fourth Proportional to 224,749.55, 310,163.79 and 129,256.31
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Solution
The fourth proportional to 224,749.55, 310,163.79 and 129,256.31 is: 178,379.12
Step by Step Solution
- Step 1: Write the proportion equation
224,749.55 : 310,163.79 = 129,256.31 : x - Step 2: Convert to fraction form
224,749.55/310,163.79 = 129,256.31/x - Step 3: Cross multiply
224,749.55x = 310,163.79 × 129,256.31 - Step 4: Simplify right side
224,749.55x = 40,090,625,440.20 - Step 5: Solve for x
x = 40,090,625,440.20/224,749.55 - Step 6: Final answer
x = 178,379.12
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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.