Finding the Fourth Proportional to 381.83, 526.93 and 207.17
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Solution
The fourth proportional to 381.83, 526.93 and 207.17 is: 285.89
Step by Step Solution
- Step 1: Write the proportion equation
381.83 : 526.93 = 207.17 : x - Step 2: Convert to fraction form
381.83/526.93 = 207.17/x - Step 3: Cross multiply
381.83x = 526.93 × 207.17 - Step 4: Simplify right side
381.83x = 109,163.05 - Step 5: Solve for x
x = 109,163.05/381.83 - Step 6: Final answer
x = 285.89
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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.