Finding the Fourth Proportional to 431.64, 594.99 and 320.94
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Solution
The fourth proportional to 431.64, 594.99 and 320.94 is: 442.40
Step by Step Solution
- Step 1: Write the proportion equation
431.64 : 594.99 = 320.94 : x - Step 2: Convert to fraction form
431.64/594.99 = 320.94/x - Step 3: Cross multiply
431.64x = 594.99 × 320.94 - Step 4: Simplify right side
431.64x = 190,956.09 - Step 5: Solve for x
x = 190,956.09/431.64 - Step 6: Final answer
x = 442.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.