Finding the Fourth Proportional to 316,431.15, 436,673.39 and 171,236.82
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Solution
The fourth proportional to 316,431.15, 436,673.39 and 171,236.82 is: 236,305.95
Step by Step Solution
- Step 1: Write the proportion equation
316,431.15 : 436,673.39 = 171,236.82 : x - Step 2: Convert to fraction form
316,431.15/436,673.39 = 171,236.82/x - Step 3: Cross multiply
316,431.15x = 436,673.39 × 171,236.82 - Step 4: Simplify right side
316,431.15x = 74,774,562,682.22 - Step 5: Solve for x
x = 74,774,562,682.22/316,431.15 - Step 6: Final answer
x = 236,305.95
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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.