Finding the Fourth Proportional to 351.60, 485.14 and 202.26
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Solution
The fourth proportional to 351.60, 485.14 and 202.26 is: 279.08
Step by Step Solution
- Step 1: Write the proportion equation
351.60 : 485.14 = 202.26 : x - Step 2: Convert to fraction form
351.60/485.14 = 202.26/x - Step 3: Cross multiply
351.60x = 485.14 × 202.26 - Step 4: Simplify right side
351.60x = 98,124.42 - Step 5: Solve for x
x = 98,124.42/351.60 - Step 6: Final answer
x = 279.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.