Finding the Fourth Proportional to 230,915.42, 318,883.36 and 218,335.40
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Solution
The fourth proportional to 230,915.42, 318,883.36 and 218,335.40 is: 301,510.94
Step by Step Solution
- Step 1: Write the proportion equation
230,915.42 : 318,883.36 = 218,335.40 : x - Step 2: Convert to fraction form
230,915.42/318,883.36 = 218,335.40/x - Step 3: Cross multiply
230,915.42x = 318,883.36 × 218,335.40 - Step 4: Simplify right side
230,915.42x = 69,623,525,958.94 - Step 5: Solve for x
x = 69,623,525,958.94/230,915.42 - Step 6: Final answer
x = 301,510.94
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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.