Finding the Fourth Proportional to 339,866.62, 509,800.74 and 103,211.08
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Solution
The fourth proportional to 339,866.62, 509,800.74 and 103,211.08 is: 154,816.87
Step by Step Solution
- Step 1: Write the proportion equation
339,866.62 : 509,800.74 = 103,211.08 : x - Step 2: Convert to fraction form
339,866.62/509,800.74 = 103,211.08/x - Step 3: Cross multiply
339,866.62x = 509,800.74 × 103,211.08 - Step 4: Simplify right side
339,866.62x = 52,617,084,960.20 - Step 5: Solve for x
x = 52,617,084,960.20/339,866.62 - Step 6: Final answer
x = 154,816.87
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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.