Finding the Fourth Proportional to 339,976.70, 509,965.05 and 162,829.70
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Solution
The fourth proportional to 339,976.70, 509,965.05 and 162,829.70 is: 244,244.55
Step by Step Solution
- Step 1: Write the proportion equation
339,976.70 : 509,965.05 = 162,829.70 : x - Step 2: Convert to fraction form
339,976.70/509,965.05 = 162,829.70/x - Step 3: Cross multiply
339,976.70x = 509,965.05 × 162,829.70 - Step 4: Simplify right side
339,976.70x = 83,037,456,101.99 - Step 5: Solve for x
x = 83,037,456,101.99/339,976.70 - Step 6: Final answer
x = 244,244.55
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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.