Finding the Fourth Proportional to 315,586.08, 435,506.49 and 172,346.08
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Solution
The fourth proportional to 315,586.08, 435,506.49 and 172,346.08 is: 237,836.33
Step by Step Solution
- Step 1: Write the proportion equation
315,586.08 : 435,506.49 = 172,346.08 : x - Step 2: Convert to fraction form
315,586.08/435,506.49 = 172,346.08/x - Step 3: Cross multiply
315,586.08x = 435,506.49 × 172,346.08 - Step 4: Simplify right side
315,586.08x = 75,057,836,366.06 - Step 5: Solve for x
x = 75,057,836,366.06/315,586.08 - Step 6: Final answer
x = 237,836.33
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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.