Finding the Fourth Proportional to 236,945.36, 326,985.28 and 129,516.68
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Solution
The fourth proportional to 236,945.36, 326,985.28 and 129,516.68 is: 178,733.39
Step by Step Solution
- Step 1: Write the proportion equation
236,945.36 : 326,985.28 = 129,516.68 : x - Step 2: Convert to fraction form
236,945.36/326,985.28 = 129,516.68/x - Step 3: Cross multiply
236,945.36x = 326,985.28 × 129,516.68 - Step 4: Simplify right side
236,945.36x = 42,350,047,874.47 - Step 5: Solve for x
x = 42,350,047,874.47/236,945.36 - Step 6: Final answer
x = 178,733.39
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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.