Finding the Fourth Proportional to 351.96, 528.02 and 135.70
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Solution
The fourth proportional to 351.96, 528.02 and 135.70 is: 203.58
Step by Step Solution
- Step 1: Write the proportion equation
351.96 : 528.02 = 135.70 : x - Step 2: Convert to fraction form
351.96/528.02 = 135.70/x - Step 3: Cross multiply
351.96x = 528.02 × 135.70 - Step 4: Simplify right side
351.96x = 71,652.31 - Step 5: Solve for x
x = 71,652.31/351.96 - Step 6: Final answer
x = 203.58
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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.