Finding the Fourth Proportional to 280,292.08, 420,462.40 and 80,628.70
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Solution
The fourth proportional to 280,292.08, 420,462.40 and 80,628.70 is: 120,950.03
Step by Step Solution
- Step 1: Write the proportion equation
280,292.08 : 420,462.40 = 80,628.70 : x - Step 2: Convert to fraction form
280,292.08/420,462.40 = 80,628.70/x - Step 3: Cross multiply
280,292.08x = 420,462.40 × 80,628.70 - Step 4: Simplify right side
280,292.08x = 33,901,336,710.88 - Step 5: Solve for x
x = 33,901,336,710.88/280,292.08 - Step 6: Final answer
x = 120,950.03
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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.