Finding the Fourth Proportional to 371,987.23, 513,328.08 and 202,221.35
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Solution
The fourth proportional to 371,987.23, 513,328.08 and 202,221.35 is: 279,057.69
Step by Step Solution
- Step 1: Write the proportion equation
371,987.23 : 513,328.08 = 202,221.35 : x - Step 2: Convert to fraction form
371,987.23/513,328.08 = 202,221.35/x - Step 3: Cross multiply
371,987.23x = 513,328.08 × 202,221.35 - Step 4: Simplify right side
371,987.23x = 103,805,897,330.51 - Step 5: Solve for x
x = 103,805,897,330.51/371,987.23 - Step 6: Final answer
x = 279,057.69
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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.