Finding the Fourth Proportional to 354,585.12, 489,279.06 and 203,682.12
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Solution
The fourth proportional to 354,585.12, 489,279.06 and 203,682.12 is: 281,053.52
Step by Step Solution
- Step 1: Write the proportion equation
354,585.12 : 489,279.06 = 203,682.12 : x - Step 2: Convert to fraction form
354,585.12/489,279.06 = 203,682.12/x - Step 3: Cross multiply
354,585.12x = 489,279.06 × 203,682.12 - Step 4: Simplify right side
354,585.12x = 99,657,396,212.41 - Step 5: Solve for x
x = 99,657,396,212.41/354,585.12 - Step 6: Final answer
x = 281,053.52
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1.5x scale
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.