Finding the Fourth Proportional to 458.70, 632.99 and 269.70
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Solution
The fourth proportional to 458.70, 632.99 and 269.70 is: 372.17
Step by Step Solution
- Step 1: Write the proportion equation
458.70 : 632.99 = 269.70 : x - Step 2: Convert to fraction form
458.70/632.99 = 269.70/x - Step 3: Cross multiply
458.70x = 632.99 × 269.70 - Step 4: Simplify right side
458.70x = 170,716.05 - Step 5: Solve for x
x = 170,716.05/458.70 - Step 6: Final answer
x = 372.17
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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.