Finding the Fourth Proportional to 414.32, 621.14 and 283.99
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Solution
The fourth proportional to 414.32, 621.14 and 283.99 is: 425.76
Step by Step Solution
- Step 1: Write the proportion equation
414.32 : 621.14 = 283.99 : x - Step 2: Convert to fraction form
414.32/621.14 = 283.99/x - Step 3: Cross multiply
414.32x = 621.14 × 283.99 - Step 4: Simplify right side
414.32x = 176,399.81 - Step 5: Solve for x
x = 176,399.81/414.32 - Step 6: Final answer
x = 425.76
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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.