Finding the Fourth Proportional to 309.60, 464.36 and 93.19
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Solution
The fourth proportional to 309.60, 464.36 and 93.19 is: 139.77
Step by Step Solution
- Step 1: Write the proportion equation
309.60 : 464.36 = 93.19 : x - Step 2: Convert to fraction form
309.60/464.36 = 93.19/x - Step 3: Cross multiply
309.60x = 464.36 × 93.19 - Step 4: Simplify right side
309.60x = 43,273.71 - Step 5: Solve for x
x = 43,273.71/309.60 - Step 6: Final answer
x = 139.77
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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.