Finding the Fourth Proportional to 384,340.19, 530,348.99 and 223,163.69
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Solution
The fourth proportional to 384,340.19, 530,348.99 and 223,163.69 is: 307,942.39
Step by Step Solution
- Step 1: Write the proportion equation
384,340.19 : 530,348.99 = 223,163.69 : x - Step 2: Convert to fraction form
384,340.19/530,348.99 = 223,163.69/x - Step 3: Cross multiply
384,340.19x = 530,348.99 × 223,163.69 - Step 4: Simplify right side
384,340.19x = 118,354,633,828.61 - Step 5: Solve for x
x = 118,354,633,828.61/384,340.19 - Step 6: Final answer
x = 307,942.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.