Finding the Fourth Proportional to 381,268.84, 571,907.10 and 115,031.56
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Solution
The fourth proportional to 381,268.84, 571,907.10 and 115,031.56 is: 172,548.50
Step by Step Solution
- Step 1: Write the proportion equation
381,268.84 : 571,907.10 = 115,031.56 : x - Step 2: Convert to fraction form
381,268.84/571,907.10 = 115,031.56/x - Step 3: Cross multiply
381,268.84x = 571,907.10 × 115,031.56 - Step 4: Simplify right side
381,268.84x = 65,787,365,888.08 - Step 5: Solve for x
x = 65,787,365,888.08/381,268.84 - Step 6: Final answer
x = 172,548.50
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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.