Finding the Fourth Proportional to 381,408.84, 526,350.87 and 209,342.90
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Solution
The fourth proportional to 381,408.84, 526,350.87 and 209,342.90 is: 288,896.86
Step by Step Solution
- Step 1: Write the proportion equation
381,408.84 : 526,350.87 = 209,342.90 : x - Step 2: Convert to fraction form
381,408.84/526,350.87 = 209,342.90/x - Step 3: Cross multiply
381,408.84x = 526,350.87 × 209,342.90 - Step 4: Simplify right side
381,408.84x = 110,187,814,911.57 - Step 5: Solve for x
x = 110,187,814,911.57/381,408.84 - Step 6: Final answer
x = 288,896.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.