Finding the Fourth Proportional to 412.43, 569.08 and 237.79
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Solution
The fourth proportional to 412.43, 569.08 and 237.79 is: 328.11
Step by Step Solution
- Step 1: Write the proportion equation
412.43 : 569.08 = 237.79 : x - Step 2: Convert to fraction form
412.43/569.08 = 237.79/x - Step 3: Cross multiply
412.43x = 569.08 × 237.79 - Step 4: Simplify right side
412.43x = 135,321.53 - Step 5: Solve for x
x = 135,321.53/412.43 - Step 6: Final answer
x = 328.11
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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.