Finding the Fourth Proportional to 511.73, 707.09 and 402.08
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Solution
The fourth proportional to 511.73, 707.09 and 402.08 is: 555.57
Step by Step Solution
- Step 1: Write the proportion equation
511.73 : 707.09 = 402.08 : x - Step 2: Convert to fraction form
511.73/707.09 = 402.08/x - Step 3: Cross multiply
511.73x = 707.09 × 402.08 - Step 4: Simplify right side
511.73x = 284,301.20 - Step 5: Solve for x
x = 284,301.20/511.73 - Step 6: Final answer
x = 555.57
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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.