Finding the Fourth Proportional to 420.99, 581.01 and 246.33
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Solution
The fourth proportional to 420.99, 581.01 and 246.33 is: 339.96
Step by Step Solution
- Step 1: Write the proportion equation
420.99 : 581.01 = 246.33 : x - Step 2: Convert to fraction form
420.99/581.01 = 246.33/x - Step 3: Cross multiply
420.99x = 581.01 × 246.33 - Step 4: Simplify right side
420.99x = 143,120.19 - Step 5: Solve for x
x = 143,120.19/420.99 - Step 6: Final answer
x = 339.96
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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.