Finding the Fourth Proportional to 251,679.84, 347,318.22 and 138,502.59
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Solution
The fourth proportional to 251,679.84, 347,318.22 and 138,502.59 is: 191,133.59
Step by Step Solution
- Step 1: Write the proportion equation
251,679.84 : 347,318.22 = 138,502.59 : x - Step 2: Convert to fraction form
251,679.84/347,318.22 = 138,502.59/x - Step 3: Cross multiply
251,679.84x = 347,318.22 × 138,502.59 - Step 4: Simplify right side
251,679.84x = 48,104,471,287.60 - Step 5: Solve for x
x = 48,104,471,287.60/251,679.84 - Step 6: Final answer
x = 191,133.59
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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.