Finding the Fourth Proportional to 219,786.98, 329,438.27 and 143,794.19
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Solution
The fourth proportional to 219,786.98, 329,438.27 and 143,794.19 is: 215,532.82
Step by Step Solution
- Step 1: Write the proportion equation
219,786.98 : 329,438.27 = 143,794.19 : x - Step 2: Convert to fraction form
219,786.98/329,438.27 = 143,794.19/x - Step 3: Cross multiply
219,786.98x = 329,438.27 × 143,794.19 - Step 4: Simplify right side
219,786.98x = 47,371,306,823.49 - Step 5: Solve for x
x = 47,371,306,823.49/219,786.98 - Step 6: Final answer
x = 215,532.82
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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.