Finding the Fourth Proportional to 213,983.16, 295,293.15 and 118,487.80
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Solution
The fourth proportional to 213,983.16, 295,293.15 and 118,487.80 is: 163,511.17
Step by Step Solution
- Step 1: Write the proportion equation
213,983.16 : 295,293.15 = 118,487.80 : x - Step 2: Convert to fraction form
213,983.16/295,293.15 = 118,487.80/x - Step 3: Cross multiply
213,983.16x = 295,293.15 × 118,487.80 - Step 4: Simplify right side
213,983.16x = 34,988,635,106.13 - Step 5: Solve for x
x = 34,988,635,106.13/213,983.16 - Step 6: Final answer
x = 163,511.17
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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.