Finding the Fourth Proportional to 478.36, 718.01 and 356.26
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Solution
The fourth proportional to 478.36, 718.01 and 356.26 is: 534.74
Step by Step Solution
- Step 1: Write the proportion equation
478.36 : 718.01 = 356.26 : x - Step 2: Convert to fraction form
478.36/718.01 = 356.26/x - Step 3: Cross multiply
478.36x = 718.01 × 356.26 - Step 4: Simplify right side
478.36x = 255,798.24 - Step 5: Solve for x
x = 255,798.24/478.36 - Step 6: Final answer
x = 534.74
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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.