Finding the Fourth Proportional to 217,075.96, 299,711.10 and 135,528.49
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Solution
The fourth proportional to 217,075.96, 299,711.10 and 135,528.49 is: 187,120.64
Step by Step Solution
- Step 1: Write the proportion equation
217,075.96 : 299,711.10 = 135,528.49 : x - Step 2: Convert to fraction form
217,075.96/299,711.10 = 135,528.49/x - Step 3: Cross multiply
217,075.96x = 299,711.10 × 135,528.49 - Step 4: Simplify right side
217,075.96x = 40,619,392,819.24 - Step 5: Solve for x
x = 40,619,392,819.24/217,075.96 - Step 6: Final answer
x = 187,120.64
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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.