Finding the Fourth Proportional to 219,939.70, 329,909.55 and 141,207.70
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Solution
The fourth proportional to 219,939.70, 329,909.55 and 141,207.70 is: 211,811.55
Step by Step Solution
- Step 1: Write the proportion equation
219,939.70 : 329,909.55 = 141,207.70 : x - Step 2: Convert to fraction form
219,939.70/329,909.55 = 141,207.70/x - Step 3: Cross multiply
219,939.70x = 329,909.55 × 141,207.70 - Step 4: Simplify right side
219,939.70x = 46,585,768,763.54 - Step 5: Solve for x
x = 46,585,768,763.54/219,939.70 - Step 6: Final answer
x = 211,811.55
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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.