Finding the Fourth Proportional to 371,878.66, 513,192.61 and 202,112.79
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Solution
The fourth proportional to 371,878.66, 513,192.61 and 202,112.79 is: 278,915.67
Step by Step Solution
- Step 1: Write the proportion equation
371,878.66 : 513,192.61 = 202,112.79 : x - Step 2: Convert to fraction form
371,878.66/513,192.61 = 202,112.79/x - Step 3: Cross multiply
371,878.66x = 513,192.61 × 202,112.79 - Step 4: Simplify right side
371,878.66x = 103,722,786,637.96 - Step 5: Solve for x
x = 103,722,786,637.96/371,878.66 - Step 6: Final answer
x = 278,915.67
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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.