Finding the Fourth Proportional to 402.99, 605.09 and 357.63
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Solution
The fourth proportional to 402.99, 605.09 and 357.63 is: 536.98
Step by Step Solution
- Step 1: Write the proportion equation
402.99 : 605.09 = 357.63 : x - Step 2: Convert to fraction form
402.99/605.09 = 357.63/x - Step 3: Cross multiply
402.99x = 605.09 × 357.63 - Step 4: Simplify right side
402.99x = 216,398.34 - Step 5: Solve for x
x = 216,398.34/402.99 - Step 6: Final answer
x = 536.98
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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.