Finding the Fourth Proportional to 394,979.68, 545,058.48 and 225,268.48
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Solution
The fourth proportional to 394,979.68, 545,058.48 and 225,268.48 is: 310,862.82
Step by Step Solution
- Step 1: Write the proportion equation
394,979.68 : 545,058.48 = 225,268.48 : x - Step 2: Convert to fraction form
394,979.68/545,058.48 = 225,268.48/x - Step 3: Cross multiply
394,979.68x = 545,058.48 × 225,268.48 - Step 4: Simplify right side
394,979.68x = 122,784,495,300.71 - Step 5: Solve for x
x = 122,784,495,300.71/394,979.68 - Step 6: Final answer
x = 310,862.82
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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.