Finding the Fourth Proportional to 343,702.14, 515,346.10 and 154,128.23
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Solution
The fourth proportional to 343,702.14, 515,346.10 and 154,128.23 is: 231,099.46
Step by Step Solution
- Step 1: Write the proportion equation
343,702.14 : 515,346.10 = 154,128.23 : x - Step 2: Convert to fraction form
343,702.14/515,346.10 = 154,128.23/x - Step 3: Cross multiply
343,702.14x = 515,346.10 × 154,128.23 - Step 4: Simplify right side
343,702.14x = 79,429,378,883.03 - Step 5: Solve for x
x = 79,429,378,883.03/343,702.14 - Step 6: Final answer
x = 231,099.46
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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.