Finding the Fourth Proportional to 389.99, 584.24 and 291.99
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Solution
The fourth proportional to 389.99, 584.24 and 291.99 is: 437.43
Step by Step Solution
- Step 1: Write the proportion equation
389.99 : 584.24 = 291.99 : x - Step 2: Convert to fraction form
389.99/584.24 = 291.99/x - Step 3: Cross multiply
389.99x = 584.24 × 291.99 - Step 4: Simplify right side
389.99x = 170,592.24 - Step 5: Solve for x
x = 170,592.24/389.99 - Step 6: Final answer
x = 437.43
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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.