Finding the Fourth Proportional to 243,633.70, 365,437.59 and 77,408.74
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Solution
The fourth proportional to 243,633.70, 365,437.59 and 77,408.74 is: 116,108.99
Step by Step Solution
- Step 1: Write the proportion equation
243,633.70 : 365,437.59 = 77,408.74 : x - Step 2: Convert to fraction form
243,633.70/365,437.59 = 77,408.74/x - Step 3: Cross multiply
243,633.70x = 365,437.59 × 77,408.74 - Step 4: Simplify right side
243,633.70x = 28,288,063,390.54 - Step 5: Solve for x
x = 28,288,063,390.54/243,633.70 - Step 6: Final answer
x = 116,108.99
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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.