Finding the Fourth Proportional to 431.61, 595 and 283.99
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Solution
The fourth proportional to 431.61, 595 and 283.99 is: 391.50
Step by Step Solution
- Step 1: Write the proportion equation
431.61 : 595 = 283.99 : x - Step 2: Convert to fraction form
431.61/595 = 283.99/x - Step 3: Cross multiply
431.61x = 595 × 283.99 - Step 4: Simplify right side
431.61x = 168,974.05 - Step 5: Solve for x
x = 168,974.05/431.61 - Step 6: Final answer
x = 391.50
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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.