Finding the Fourth Proportional to 286,356.24, 394,899.66 and 171,618.12
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Solution
The fourth proportional to 286,356.24, 394,899.66 and 171,618.12 is: 236,670.02
Step by Step Solution
- Step 1: Write the proportion equation
286,356.24 : 394,899.66 = 171,618.12 : x - Step 2: Convert to fraction form
286,356.24/394,899.66 = 171,618.12/x - Step 3: Cross multiply
286,356.24x = 394,899.66 × 171,618.12 - Step 4: Simplify right side
286,356.24x = 67,771,937,237.84 - Step 5: Solve for x
x = 67,771,937,237.84/286,356.24 - Step 6: Final answer
x = 236,670.02
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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.