Finding the Fourth Proportional to 353,414.84, 487,676.07 and 210,147.21
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Solution
The fourth proportional to 353,414.84, 487,676.07 and 210,147.21 is: 289,981.50
Step by Step Solution
- Step 1: Write the proportion equation
353,414.84 : 487,676.07 = 210,147.21 : x - Step 2: Convert to fraction form
353,414.84/487,676.07 = 210,147.21/x - Step 3: Cross multiply
353,414.84x = 487,676.07 × 210,147.21 - Step 4: Simplify right side
353,414.84x = 102,483,765,494.27 - Step 5: Solve for x
x = 102,483,765,494.27/353,414.84 - Step 6: Final answer
x = 289,981.50
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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.