Finding the Fourth Proportional to 185,573.70, 278,267.40 and 90,810.99
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Solution
The fourth proportional to 185,573.70, 278,267.40 and 90,810.99 is: 136,170.90
Step by Step Solution
- Step 1: Write the proportion equation
185,573.70 : 278,267.40 = 90,810.99 : x - Step 2: Convert to fraction form
185,573.70/278,267.40 = 90,810.99/x - Step 3: Cross multiply
185,573.70x = 278,267.40 × 90,810.99 - Step 4: Simplify right side
185,573.70x = 25,269,738,078.73 - Step 5: Solve for x
x = 25,269,738,078.73/185,573.70 - Step 6: Final answer
x = 136,170.90
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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.