Finding the Fourth Proportional to 349.79, 482.67 and 202.40
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Solution
The fourth proportional to 349.79, 482.67 and 202.40 is: 279.29
Step by Step Solution
- Step 1: Write the proportion equation
349.79 : 482.67 = 202.40 : x - Step 2: Convert to fraction form
349.79/482.67 = 202.40/x - Step 3: Cross multiply
349.79x = 482.67 × 202.40 - Step 4: Simplify right side
349.79x = 97,692.41 - Step 5: Solve for x
x = 97,692.41/349.79 - Step 6: Final answer
x = 279.29
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.