Finding the Fourth Proportional to 286,090.36, 394,797.18 and 158,762.68
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Solution
The fourth proportional to 286,090.36, 394,797.18 and 158,762.68 is: 219,088.33
Step by Step Solution
- Step 1: Write the proportion equation
286,090.36 : 394,797.18 = 158,762.68 : x - Step 2: Convert to fraction form
286,090.36/394,797.18 = 158,762.68/x - Step 3: Cross multiply
286,090.36x = 394,797.18 × 158,762.68 - Step 4: Simplify right side
286,090.36x = 62,679,058,353.24 - Step 5: Solve for x
x = 62,679,058,353.24/286,090.36 - Step 6: Final answer
x = 219,088.33
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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.