Finding the Fourth Proportional to 280,463.10, 420,565.05 and 122,610.30
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Solution
The fourth proportional to 280,463.10, 420,565.05 and 122,610.30 is: 183,858.79
Step by Step Solution
- Step 1: Write the proportion equation
280,463.10 : 420,565.05 = 122,610.30 : x - Step 2: Convert to fraction form
280,463.10/420,565.05 = 122,610.30/x - Step 3: Cross multiply
280,463.10x = 420,565.05 × 122,610.30 - Step 4: Simplify right side
280,463.10x = 51,565,606,950.02 - Step 5: Solve for x
x = 51,565,606,950.02/280,463.10 - Step 6: Final answer
x = 183,858.79
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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.