Finding the Fourth Proportional to 418.99, 577.99 and 269.57
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Solution
The fourth proportional to 418.99, 577.99 and 269.57 is: 371.87
Step by Step Solution
- Step 1: Write the proportion equation
418.99 : 577.99 = 269.57 : x - Step 2: Convert to fraction form
418.99/577.99 = 269.57/x - Step 3: Cross multiply
418.99x = 577.99 × 269.57 - Step 4: Simplify right side
418.99x = 155,808.76 - Step 5: Solve for x
x = 155,808.76/418.99 - Step 6: Final answer
x = 371.87
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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.