Finding the Fourth Proportional to 414,101.78, 621,153.62 and 125,916.06
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Solution
The fourth proportional to 414,101.78, 621,153.62 and 125,916.06 is: 188,874.38
Step by Step Solution
- Step 1: Write the proportion equation
414,101.78 : 621,153.62 = 125,916.06 : x - Step 2: Convert to fraction form
414,101.78/621,153.62 = 125,916.06/x - Step 3: Cross multiply
414,101.78x = 621,153.62 × 125,916.06 - Step 4: Simplify right side
414,101.78x = 78,213,216,485.14 - Step 5: Solve for x
x = 78,213,216,485.14/414,101.78 - Step 6: Final answer
x = 188,874.38
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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.