Finding the Fourth Proportional to 287,192.51, 396,370.23 and 172,534.99
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Solution
The fourth proportional to 287,192.51, 396,370.23 and 172,534.99 is: 238,125.06
Step by Step Solution
- Step 1: Write the proportion equation
287,192.51 : 396,370.23 = 172,534.99 : x - Step 2: Convert to fraction form
287,192.51/396,370.23 = 172,534.99/x - Step 3: Cross multiply
287,192.51x = 396,370.23 × 172,534.99 - Step 4: Simplify right side
287,192.51x = 68,387,733,669.35 - Step 5: Solve for x
x = 68,387,733,669.35/287,192.51 - Step 6: Final answer
x = 238,125.06
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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.