Finding the Fourth Proportional to 242,911.21, 335,217.99 and 135,488.14
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Solution
The fourth proportional to 242,911.21, 335,217.99 and 135,488.14 is: 186,973.92
Step by Step Solution
- Step 1: Write the proportion equation
242,911.21 : 335,217.99 = 135,488.14 : x - Step 2: Convert to fraction form
242,911.21/335,217.99 = 135,488.14/x - Step 3: Cross multiply
242,911.21x = 335,217.99 × 135,488.14 - Step 4: Simplify right side
242,911.21x = 45,418,061,959.64 - Step 5: Solve for x
x = 45,418,061,959.64/242,911.21 - Step 6: Final answer
x = 186,973.92
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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.