Finding the Fourth Proportional to 472.70, 709.11 and 147.99
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Solution
The fourth proportional to 472.70, 709.11 and 147.99 is: 222.01
Step by Step Solution
- Step 1: Write the proportion equation
472.70 : 709.11 = 147.99 : x - Step 2: Convert to fraction form
472.70/709.11 = 147.99/x - Step 3: Cross multiply
472.70x = 709.11 × 147.99 - Step 4: Simplify right side
472.70x = 104,941.19 - Step 5: Solve for x
x = 104,941.19/472.70 - Step 6: Final answer
x = 222.01
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.