Finding the Fourth Proportional to 381.88, 526.99 and 207.22
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Solution
The fourth proportional to 381.88, 526.99 and 207.22 is: 285.96
Step by Step Solution
- Step 1: Write the proportion equation
381.88 : 526.99 = 207.22 : x - Step 2: Convert to fraction form
381.88/526.99 = 207.22/x - Step 3: Cross multiply
381.88x = 526.99 × 207.22 - Step 4: Simplify right side
381.88x = 109,202.87 - Step 5: Solve for x
x = 109,202.87/381.88 - Step 6: Final answer
x = 285.96
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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.