Finding the Fourth Proportional to 242,661.98, 363,993.93 and 74,181.68
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Solution
The fourth proportional to 242,661.98, 363,993.93 and 74,181.68 is: 111,272.81
Step by Step Solution
- Step 1: Write the proportion equation
242,661.98 : 363,993.93 = 74,181.68 : x - Step 2: Convert to fraction form
242,661.98/363,993.93 = 74,181.68/x - Step 3: Cross multiply
242,661.98x = 363,993.93 × 74,181.68 - Step 4: Simplify right side
242,661.98x = 27,001,681,237.20 - Step 5: Solve for x
x = 27,001,681,237.20/242,661.98 - Step 6: Final answer
x = 111,272.81
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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.