Finding the Fourth Proportional to 291,091.12, 401,558.74 and 170,153.39
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Solution
The fourth proportional to 291,091.12, 401,558.74 and 170,153.39 is: 234,725.75
Step by Step Solution
- Step 1: Write the proportion equation
291,091.12 : 401,558.74 = 170,153.39 : x - Step 2: Convert to fraction form
291,091.12/401,558.74 = 170,153.39/x - Step 3: Cross multiply
291,091.12x = 401,558.74 × 170,153.39 - Step 4: Simplify right side
291,091.12x = 68,326,580,895.13 - Step 5: Solve for x
x = 68,326,580,895.13/291,091.12 - Step 6: Final answer
x = 234,725.75
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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.