Finding the Fourth Proportional to 242,539.80, 363,809.70 and 76,327.80
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Solution
The fourth proportional to 242,539.80, 363,809.70 and 76,327.80 is: 114,491.70
Step by Step Solution
- Step 1: Write the proportion equation
242,539.80 : 363,809.70 = 76,327.80 : x - Step 2: Convert to fraction form
242,539.80/363,809.70 = 76,327.80/x - Step 3: Cross multiply
242,539.80x = 363,809.70 × 76,327.80 - Step 4: Simplify right side
242,539.80x = 27,768,794,019.66 - Step 5: Solve for x
x = 27,768,794,019.66/242,539.80 - Step 6: Final answer
x = 114,491.70
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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.