Finding the Fourth Proportional to 355,069.76, 489,998.88 and 193,921.76
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Solution
The fourth proportional to 355,069.76, 489,998.88 and 193,921.76 is: 267,613.45
Step by Step Solution
- Step 1: Write the proportion equation
355,069.76 : 489,998.88 = 193,921.76 : x - Step 2: Convert to fraction form
355,069.76/489,998.88 = 193,921.76/x - Step 3: Cross multiply
355,069.76x = 489,998.88 × 193,921.76 - Step 4: Simplify right side
355,069.76x = 95,021,445,207.63 - Step 5: Solve for x
x = 95,021,445,207.63/355,069.76 - Step 6: Final answer
x = 267,613.45
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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.