Finding the Fourth Proportional to 230,679.36, 318,395.52 and 130,135.68
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Solution
The fourth proportional to 230,679.36, 318,395.52 and 130,135.68 is: 179,619.96
Step by Step Solution
- Step 1: Write the proportion equation
230,679.36 : 318,395.52 = 130,135.68 : x - Step 2: Convert to fraction form
230,679.36/318,395.52 = 130,135.68/x - Step 3: Cross multiply
230,679.36x = 318,395.52 × 130,135.68 - Step 4: Simplify right side
230,679.36x = 41,434,617,504.15 - Step 5: Solve for x
x = 41,434,617,504.15/230,679.36 - Step 6: Final answer
x = 179,619.96
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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.