Finding the Fourth Proportional to 135,916.80, 203,486.40 and 135,916.80
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Solution
The fourth proportional to 135,916.80, 203,486.40 and 135,916.80 is: 203,486.40
Step by Step Solution
- Step 1: Write the proportion equation
135,916.80 : 203,486.40 = 135,916.80 : x - Step 2: Convert to fraction form
135,916.80/203,486.40 = 135,916.80/x - Step 3: Cross multiply
135,916.80x = 203,486.40 × 135,916.80 - Step 4: Simplify right side
135,916.80x = 27,657,220,331.52 - Step 5: Solve for x
x = 27,657,220,331.52/135,916.80 - Step 6: Final answer
x = 203,486.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.