Finding the Fourth Proportional to 397,612.19, 548,698.79 and 216,319.98
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Solution
The fourth proportional to 397,612.19, 548,698.79 and 216,319.98 is: 298,518.28
Step by Step Solution
- Step 1: Write the proportion equation
397,612.19 : 548,698.79 = 216,319.98 : x - Step 2: Convert to fraction form
397,612.19/548,698.79 = 216,319.98/x - Step 3: Cross multiply
397,612.19x = 548,698.79 × 216,319.98 - Step 4: Simplify right side
397,612.19x = 118,694,509,247.60 - Step 5: Solve for x
x = 118,694,509,247.60/397,612.19 - Step 6: Final answer
x = 298,518.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.