Finding the Fourth Proportional to 368,408.88, 508,247.28 and 211,161.84
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Solution
The fourth proportional to 368,408.88, 508,247.28 and 211,161.84 is: 291,313.37
Step by Step Solution
- Step 1: Write the proportion equation
368,408.88 : 508,247.28 = 211,161.84 : x - Step 2: Convert to fraction form
368,408.88/508,247.28 = 211,161.84/x - Step 3: Cross multiply
368,408.88x = 508,247.28 × 211,161.84 - Step 4: Simplify right side
368,408.88x = 107,322,430,819.80 - Step 5: Solve for x
x = 107,322,430,819.80/368,408.88 - Step 6: Final answer
x = 291,313.37
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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.