Finding the Fourth Proportional to 143,281.80, 214,922.70 and 129,503.70
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Solution
The fourth proportional to 143,281.80, 214,922.70 and 129,503.70 is: 194,255.55
Step by Step Solution
- Step 1: Write the proportion equation
143,281.80 : 214,922.70 = 129,503.70 : x - Step 2: Convert to fraction form
143,281.80/214,922.70 = 129,503.70/x - Step 3: Cross multiply
143,281.80x = 214,922.70 × 129,503.70 - Step 4: Simplify right side
143,281.80x = 27,833,284,863.99 - Step 5: Solve for x
x = 27,833,284,863.99/143,281.80 - Step 6: Final answer
x = 194,255.55
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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.