Finding the Fourth Proportional to 509.22, 763.85 and 336.99
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Solution
The fourth proportional to 509.22, 763.85 and 336.99 is: 505.49
Step by Step Solution
- Step 1: Write the proportion equation
509.22 : 763.85 = 336.99 : x - Step 2: Convert to fraction form
509.22/763.85 = 336.99/x - Step 3: Cross multiply
509.22x = 763.85 × 336.99 - Step 4: Simplify right side
509.22x = 257,408.13 - Step 5: Solve for x
x = 257,408.13/509.22 - Step 6: Final answer
x = 505.49
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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.