Finding the Fourth Proportional to 312,163.72, 468,387.74 and 132,298.44
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Solution
The fourth proportional to 312,163.72, 468,387.74 and 132,298.44 is: 198,507.91
Step by Step Solution
- Step 1: Write the proportion equation
312,163.72 : 468,387.74 = 132,298.44 : x - Step 2: Convert to fraction form
312,163.72/468,387.74 = 132,298.44/x - Step 3: Cross multiply
312,163.72x = 468,387.74 × 132,298.44 - Step 4: Simplify right side
312,163.72x = 61,966,967,317.13 - Step 5: Solve for x
x = 61,966,967,317.13/312,163.72 - Step 6: Final answer
x = 198,507.91
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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.