Finding the Fourth Proportional to 312,988.92, 469,488.24 and 76,336.08
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Solution
The fourth proportional to 312,988.92, 469,488.24 and 76,336.08 is: 114,505.31
Step by Step Solution
- Step 1: Write the proportion equation
312,988.92 : 469,488.24 = 76,336.08 : x - Step 2: Convert to fraction form
312,988.92/469,488.24 = 76,336.08/x - Step 3: Cross multiply
312,988.92x = 469,488.24 × 76,336.08 - Step 4: Simplify right side
312,988.92x = 35,838,891,847.70 - Step 5: Solve for x
x = 35,838,891,847.70/312,988.92 - Step 6: Final answer
x = 114,505.31
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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.