Finding the Fourth Proportional to 328,778.16, 453,688.02 and 201,436.44
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Solution
The fourth proportional to 328,778.16, 453,688.02 and 201,436.44 is: 277,966.46
Step by Step Solution
- Step 1: Write the proportion equation
328,778.16 : 453,688.02 = 201,436.44 : x - Step 2: Convert to fraction form
328,778.16/453,688.02 = 201,436.44/x - Step 3: Cross multiply
328,778.16x = 453,688.02 × 201,436.44 - Step 4: Simplify right side
328,778.16x = 91,389,299,619.45 - Step 5: Solve for x
x = 91,389,299,619.45/328,778.16 - Step 6: Final answer
x = 277,966.46
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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.