Finding the Fourth Proportional to 515.97, 711.99 and 294.99
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Solution
The fourth proportional to 515.97, 711.99 and 294.99 is: 407.06
Step by Step Solution
- Step 1: Write the proportion equation
515.97 : 711.99 = 294.99 : x - Step 2: Convert to fraction form
515.97/711.99 = 294.99/x - Step 3: Cross multiply
515.97x = 711.99 × 294.99 - Step 4: Simplify right side
515.97x = 210,031.27 - Step 5: Solve for x
x = 210,031.27/515.97 - Step 6: Final answer
x = 407.06
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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.