Finding the Fourth Proportional to 189,091.80, 283,637.70 and 135,947.70
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Solution
The fourth proportional to 189,091.80, 283,637.70 and 135,947.70 is: 203,921.55
Step by Step Solution
- Step 1: Write the proportion equation
189,091.80 : 283,637.70 = 135,947.70 : x - Step 2: Convert to fraction form
189,091.80/283,637.70 = 135,947.70/x - Step 3: Cross multiply
189,091.80x = 283,637.70 × 135,947.70 - Step 4: Simplify right side
189,091.80x = 38,559,892,948.29 - Step 5: Solve for x
x = 38,559,892,948.29/189,091.80 - Step 6: Final answer
x = 203,921.55
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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.