Finding the Fourth Proportional to 280,110.99, 386,558.43 and 152,791.14
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Solution
The fourth proportional to 280,110.99, 386,558.43 and 152,791.14 is: 210,854.64
Step by Step Solution
- Step 1: Write the proportion equation
280,110.99 : 386,558.43 = 152,791.14 : x - Step 2: Convert to fraction form
280,110.99/386,558.43 = 152,791.14/x - Step 3: Cross multiply
280,110.99x = 386,558.43 × 152,791.14 - Step 4: Simplify right side
280,110.99x = 59,062,703,196.31 - Step 5: Solve for x
x = 59,062,703,196.31/280,110.99 - Step 6: Final answer
x = 210,854.64
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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.