Finding the Fourth Proportional to 190,029.40, 284,865.90 and 71,780.20
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Solution
The fourth proportional to 190,029.40, 284,865.90 and 71,780.20 is: 107,602.99
Step by Step Solution
- Step 1: Write the proportion equation
190,029.40 : 284,865.90 = 71,780.20 : x - Step 2: Convert to fraction form
190,029.40/284,865.90 = 71,780.20/x - Step 3: Cross multiply
190,029.40x = 284,865.90 × 71,780.20 - Step 4: Simplify right side
190,029.40x = 20,447,731,275.18 - Step 5: Solve for x
x = 20,447,731,275.18/190,029.40 - Step 6: Final answer
x = 107,602.99
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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.