Finding the Fourth Proportional to 387,486.99, 534,738.38 and 213,064.53
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Solution
The fourth proportional to 387,486.99, 534,738.38 and 213,064.53 is: 294,032.53
Step by Step Solution
- Step 1: Write the proportion equation
387,486.99 : 534,738.38 = 213,064.53 : x - Step 2: Convert to fraction form
387,486.99/534,738.38 = 213,064.53/x - Step 3: Cross multiply
387,486.99x = 534,738.38 × 213,064.53 - Step 4: Simplify right side
387,486.99x = 113,933,780,542.34 - Step 5: Solve for x
x = 113,933,780,542.34/387,486.99 - Step 6: Final answer
x = 294,032.53
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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.