Finding the Fourth Proportional to 331.95, 458.08 and 207.65
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Solution
The fourth proportional to 331.95, 458.08 and 207.65 is: 286.55
Step by Step Solution
- Step 1: Write the proportion equation
331.95 : 458.08 = 207.65 : x - Step 2: Convert to fraction form
331.95/458.08 = 207.65/x - Step 3: Cross multiply
331.95x = 458.08 × 207.65 - Step 4: Simplify right side
331.95x = 95,120.94 - Step 5: Solve for x
x = 95,120.94/331.95 - Step 6: Final answer
x = 286.55
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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.