Finding the Fourth Proportional to 349.39, 482.08 and 202.02
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Solution
The fourth proportional to 349.39, 482.08 and 202.02 is: 278.74
Step by Step Solution
- Step 1: Write the proportion equation
349.39 : 482.08 = 202.02 : x - Step 2: Convert to fraction form
349.39/482.08 = 202.02/x - Step 3: Cross multiply
349.39x = 482.08 × 202.02 - Step 4: Simplify right side
349.39x = 97,389.80 - Step 5: Solve for x
x = 97,389.80/349.39 - Step 6: Final answer
x = 278.74
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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.