Finding the Fourth Proportional to 313.30, 432.42 and 202.93
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Solution
The fourth proportional to 313.30, 432.42 and 202.93 is: 280.09
Step by Step Solution
- Step 1: Write the proportion equation
313.30 : 432.42 = 202.93 : x - Step 2: Convert to fraction form
313.30/432.42 = 202.93/x - Step 3: Cross multiply
313.30x = 432.42 × 202.93 - Step 4: Simplify right side
313.30x = 87,750.99 - Step 5: Solve for x
x = 87,750.99/313.30 - Step 6: Final answer
x = 280.09
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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.