Finding the Fourth Proportional to 217,423.80, 326,135.70 and 93,007.80
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Solution
The fourth proportional to 217,423.80, 326,135.70 and 93,007.80 is: 139,511.70
Step by Step Solution
- Step 1: Write the proportion equation
217,423.80 : 326,135.70 = 93,007.80 : x - Step 2: Convert to fraction form
217,423.80/326,135.70 = 93,007.80/x - Step 3: Cross multiply
217,423.80x = 326,135.70 × 93,007.80 - Step 4: Simplify right side
217,423.80x = 30,333,163,958.46 - Step 5: Solve for x
x = 30,333,163,958.46/217,423.80 - Step 6: Final answer
x = 139,511.70
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1.5x scale
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.