Finding the Fourth Proportional to 431.68, 594.68 and 356.68
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Solution
The fourth proportional to 431.68, 594.68 and 356.68 is: 491.35
Step by Step Solution
- Step 1: Write the proportion equation
431.68 : 594.68 = 356.68 : x - Step 2: Convert to fraction form
431.68/594.68 = 356.68/x - Step 3: Cross multiply
431.68x = 594.68 × 356.68 - Step 4: Simplify right side
431.68x = 212,107.75 - Step 5: Solve for x
x = 212,107.75/431.68 - Step 6: Final answer
x = 491.35
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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.