Finding the Fourth Proportional to 312,339.68, 468,508.16 and 75,682.08
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Solution
The fourth proportional to 312,339.68, 468,508.16 and 75,682.08 is: 113,522.79
Step by Step Solution
- Step 1: Write the proportion equation
312,339.68 : 468,508.16 = 75,682.08 : x - Step 2: Convert to fraction form
312,339.68/468,508.16 = 75,682.08/x - Step 3: Cross multiply
312,339.68x = 468,508.16 × 75,682.08 - Step 4: Simplify right side
312,339.68x = 35,457,672,045.77 - Step 5: Solve for x
x = 35,457,672,045.77/312,339.68 - Step 6: Final answer
x = 113,522.79
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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.