Finding the Fourth Proportional to 405.19, 559.26 and 230.63
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Solution
The fourth proportional to 405.19, 559.26 and 230.63 is: 318.33
Step by Step Solution
- Step 1: Write the proportion equation
405.19 : 559.26 = 230.63 : x - Step 2: Convert to fraction form
405.19/559.26 = 230.63/x - Step 3: Cross multiply
405.19x = 559.26 × 230.63 - Step 4: Simplify right side
405.19x = 128,983.53 - Step 5: Solve for x
x = 128,983.53/405.19 - Step 6: Final answer
x = 318.33
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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.