Finding the Fourth Proportional to 312,245.68, 468,358.52 and 132,283.09
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Solution
The fourth proportional to 312,245.68, 468,358.52 and 132,283.09 is: 198,420.40
Step by Step Solution
- Step 1: Write the proportion equation
312,245.68 : 468,358.52 = 132,283.09 : x - Step 2: Convert to fraction form
312,245.68/468,358.52 = 132,283.09/x - Step 3: Cross multiply
312,245.68x = 468,358.52 × 132,283.09 - Step 4: Simplify right side
312,245.68x = 61,955,911,224.70 - Step 5: Solve for x
x = 61,955,911,224.70/312,245.68 - Step 6: Final answer
x = 198,420.40
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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.