Finding the Fourth Proportional to 340.93, 510.97 and 145.70
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Solution
The fourth proportional to 340.93, 510.97 and 145.70 is: 218.37
Step by Step Solution
- Step 1: Write the proportion equation
340.93 : 510.97 = 145.70 : x - Step 2: Convert to fraction form
340.93/510.97 = 145.70/x - Step 3: Cross multiply
340.93x = 510.97 × 145.70 - Step 4: Simplify right side
340.93x = 74,448.19 - Step 5: Solve for x
x = 74,448.19/340.93 - Step 6: Final answer
x = 218.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.