Finding the Fourth Proportional to 315,330.84, 435,156.36 and 202,153.56
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Solution
The fourth proportional to 315,330.84, 435,156.36 and 202,153.56 is: 278,971.79
Step by Step Solution
- Step 1: Write the proportion equation
315,330.84 : 435,156.36 = 202,153.56 : x - Step 2: Convert to fraction form
315,330.84/435,156.36 = 202,153.56/x - Step 3: Cross multiply
315,330.84x = 435,156.36 × 202,153.56 - Step 4: Simplify right side
315,330.84x = 87,968,407,330.64 - Step 5: Solve for x
x = 87,968,407,330.64/315,330.84 - Step 6: Final answer
x = 278,971.79
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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.