Finding the Fourth Proportional to 357.24, 492.99 and 199.87
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Solution
The fourth proportional to 357.24, 492.99 and 199.87 is: 275.82
Step by Step Solution
- Step 1: Write the proportion equation
357.24 : 492.99 = 199.87 : x - Step 2: Convert to fraction form
357.24/492.99 = 199.87/x - Step 3: Cross multiply
357.24x = 492.99 × 199.87 - Step 4: Simplify right side
357.24x = 98,533.91 - Step 5: Solve for x
x = 98,533.91/357.24 - Step 6: Final answer
x = 275.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.