Finding the Fourth Proportional to 368.14, 508.08 and 212.90
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Solution
The fourth proportional to 368.14, 508.08 and 212.90 is: 293.83
Step by Step Solution
- Step 1: Write the proportion equation
368.14 : 508.08 = 212.90 : x - Step 2: Convert to fraction form
368.14/508.08 = 212.90/x - Step 3: Cross multiply
368.14x = 508.08 × 212.90 - Step 4: Simplify right side
368.14x = 108,170.23 - Step 5: Solve for x
x = 108,170.23/368.14 - Step 6: Final answer
x = 293.83
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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.