Finding the Fourth Proportional to 307.13, 460.70 and 79.13
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Solution
The fourth proportional to 307.13, 460.70 and 79.13 is: 118.69
Step by Step Solution
- Step 1: Write the proportion equation
307.13 : 460.70 = 79.13 : x - Step 2: Convert to fraction form
307.13/460.70 = 79.13/x - Step 3: Cross multiply
307.13x = 460.70 × 79.13 - Step 4: Simplify right side
307.13x = 36,452.49 - Step 5: Solve for x
x = 36,452.49/307.13 - Step 6: Final answer
x = 118.69
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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.