Finding the Fourth Proportional to 343,754.81, 515,646.19 and 163,747.70
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Solution
The fourth proportional to 343,754.81, 515,646.19 and 163,747.70 is: 245,628.20
Step by Step Solution
- Step 1: Write the proportion equation
343,754.81 : 515,646.19 = 163,747.70 : x - Step 2: Convert to fraction form
343,754.81/515,646.19 = 163,747.70/x - Step 3: Cross multiply
343,754.81x = 515,646.19 × 163,747.70 - Step 4: Simplify right side
343,754.81x = 84,435,874,638.66 - Step 5: Solve for x
x = 84,435,874,638.66/343,754.81 - Step 6: Final answer
x = 245,628.20
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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.