Finding the Fourth Proportional to 416,109.87, 623,612.99 and 213,697.80
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Solution
The fourth proportional to 416,109.87, 623,612.99 and 213,697.80 is: 320,263.31
Step by Step Solution
- Step 1: Write the proportion equation
416,109.87 : 623,612.99 = 213,697.80 : x - Step 2: Convert to fraction form
416,109.87/623,612.99 = 213,697.80/x - Step 3: Cross multiply
416,109.87x = 623,612.99 × 213,697.80 - Step 4: Simplify right side
416,109.87x = 133,264,722,945.93 - Step 5: Solve for x
x = 133,264,722,945.93/416,109.87 - Step 6: Final answer
x = 320,263.31
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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.