Finding the Fourth Proportional to 316,316.96, 436,516.93 and 173,076.96
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Solution
The fourth proportional to 316,316.96, 436,516.93 and 173,076.96 is: 238,845.95
Step by Step Solution
- Step 1: Write the proportion equation
316,316.96 : 436,516.93 = 173,076.96 : x - Step 2: Convert to fraction form
316,316.96/436,516.93 = 173,076.96/x - Step 3: Cross multiply
316,316.96x = 436,516.93 × 173,076.96 - Step 4: Simplify right side
316,316.96x = 75,551,023,232.93 - Step 5: Solve for x
x = 75,551,023,232.93/316,316.96 - Step 6: Final answer
x = 238,845.95
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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.