Finding the Fourth Proportional to 474.26, 710.58 and 257.99
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Solution
The fourth proportional to 474.26, 710.58 and 257.99 is: 386.54
Step by Step Solution
- Step 1: Write the proportion equation
474.26 : 710.58 = 257.99 : x - Step 2: Convert to fraction form
474.26/710.58 = 257.99/x - Step 3: Cross multiply
474.26x = 710.58 × 257.99 - Step 4: Simplify right side
474.26x = 183,322.53 - Step 5: Solve for x
x = 183,322.53/474.26 - Step 6: Final answer
x = 386.54
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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.