Finding the Fourth Proportional to 349.58, 482.31 and 202.19
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Solution
The fourth proportional to 349.58, 482.31 and 202.19 is: 278.96
Step by Step Solution
- Step 1: Write the proportion equation
349.58 : 482.31 = 202.19 : x - Step 2: Convert to fraction form
349.58/482.31 = 202.19/x - Step 3: Cross multiply
349.58x = 482.31 × 202.19 - Step 4: Simplify right side
349.58x = 97,518.26 - Step 5: Solve for x
x = 97,518.26/349.58 - Step 6: Final answer
x = 278.96
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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.