Finding the Fourth Proportional to 354,437.60, 489,112.92 and 201,492.48
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Solution
The fourth proportional to 354,437.60, 489,112.92 and 201,492.48 is: 278,053.39
Step by Step Solution
- Step 1: Write the proportion equation
354,437.60 : 489,112.92 = 201,492.48 : x - Step 2: Convert to fraction form
354,437.60/489,112.92 = 201,492.48/x - Step 3: Cross multiply
354,437.60x = 489,112.92 × 201,492.48 - Step 4: Simplify right side
354,437.60x = 98,552,575,250.84 - Step 5: Solve for x
x = 98,552,575,250.84/354,437.60 - Step 6: Final answer
x = 278,053.39
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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.