Finding the Fourth Proportional to 338.55, 507.87 and 155.99
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Solution
The fourth proportional to 338.55, 507.87 and 155.99 is: 234.00
Step by Step Solution
- Step 1: Write the proportion equation
338.55 : 507.87 = 155.99 : x - Step 2: Convert to fraction form
338.55/507.87 = 155.99/x - Step 3: Cross multiply
338.55x = 507.87 × 155.99 - Step 4: Simplify right side
338.55x = 79,220.10 - Step 5: Solve for x
x = 79,220.10/338.55 - Step 6: Final answer
x = 234.00
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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.