Finding the Fourth Proportional to 280,201.77, 420,154.11 and 122,245.70
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Solution
The fourth proportional to 280,201.77, 420,154.11 and 122,245.70 is: 183,303.74
Step by Step Solution
- Step 1: Write the proportion equation
280,201.77 : 420,154.11 = 122,245.70 : x - Step 2: Convert to fraction form
280,201.77/420,154.11 = 122,245.70/x - Step 3: Cross multiply
280,201.77x = 420,154.11 × 122,245.70 - Step 4: Simplify right side
280,201.77x = 51,362,031,184.06 - Step 5: Solve for x
x = 51,362,031,184.06/280,201.77 - Step 6: Final answer
x = 183,303.74
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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.