Finding the Fourth Proportional to 280,320.29, 420,535.82 and 102,828.84
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Solution
The fourth proportional to 280,320.29, 420,535.82 and 102,828.84 is: 154,263.58
Step by Step Solution
- Step 1: Write the proportion equation
280,320.29 : 420,535.82 = 102,828.84 : x - Step 2: Convert to fraction form
280,320.29/420,535.82 = 102,828.84/x - Step 3: Cross multiply
280,320.29x = 420,535.82 × 102,828.84 - Step 4: Simplify right side
280,320.29x = 43,243,210,806.12 - Step 5: Solve for x
x = 43,243,210,806.12/280,320.29 - Step 6: Final answer
x = 154,263.58
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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.