Finding the Fourth Proportional to 543.91, 750.86 and 310.99
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Solution
The fourth proportional to 543.91, 750.86 and 310.99 is: 429.32
Step by Step Solution
- Step 1: Write the proportion equation
543.91 : 750.86 = 310.99 : x - Step 2: Convert to fraction form
543.91/750.86 = 310.99/x - Step 3: Cross multiply
543.91x = 750.86 × 310.99 - Step 4: Simplify right side
543.91x = 233,509.95 - Step 5: Solve for x
x = 233,509.95/543.91 - Step 6: Final answer
x = 429.32
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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.