Finding the Fourth Proportional to 959.39, 1,438.93 and 342.99
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Solution
The fourth proportional to 959.39, 1,438.93 and 342.99 is: 514.43
Step by Step Solution
- Step 1: Write the proportion equation
959.39 : 1,438.93 = 342.99 : x - Step 2: Convert to fraction form
959.39/1,438.93 = 342.99/x - Step 3: Cross multiply
959.39x = 1,438.93 × 342.99 - Step 4: Simplify right side
959.39x = 493,537.74 - Step 5: Solve for x
x = 493,537.74/959.39 - Step 6: Final answer
x = 514.43
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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.