Finding the Fourth Proportional to 405.18, 606.97 and 267.80
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Solution
The fourth proportional to 405.18, 606.97 and 267.80 is: 401.17
Step by Step Solution
- Step 1: Write the proportion equation
405.18 : 606.97 = 267.80 : x - Step 2: Convert to fraction form
405.18/606.97 = 267.80/x - Step 3: Cross multiply
405.18x = 606.97 × 267.80 - Step 4: Simplify right side
405.18x = 162,547.41 - Step 5: Solve for x
x = 162,547.41/405.18 - Step 6: Final answer
x = 401.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.