Finding the Fourth Proportional to 315,678.66, 435,779.98 and 201,114.42
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Solution
The fourth proportional to 315,678.66, 435,779.98 and 201,114.42 is: 277,629.28
Step by Step Solution
- Step 1: Write the proportion equation
315,678.66 : 435,779.98 = 201,114.42 : x - Step 2: Convert to fraction form
315,678.66/435,779.98 = 201,114.42/x - Step 3: Cross multiply
315,678.66x = 435,779.98 × 201,114.42 - Step 4: Simplify right side
315,678.66x = 87,641,637,925.31 - Step 5: Solve for x
x = 87,641,637,925.31/315,678.66 - Step 6: Final answer
x = 277,629.28
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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.