Finding the Fourth Proportional to 580.42, 800.14 and 358.99
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Solution
The fourth proportional to 580.42, 800.14 and 358.99 is: 494.89
Step by Step Solution
- Step 1: Write the proportion equation
580.42 : 800.14 = 358.99 : x - Step 2: Convert to fraction form
580.42/800.14 = 358.99/x - Step 3: Cross multiply
580.42x = 800.14 × 358.99 - Step 4: Simplify right side
580.42x = 287,242.26 - Step 5: Solve for x
x = 287,242.26/580.42 - Step 6: Final answer
x = 494.89
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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.