Finding the Fourth Proportional to 313,032.12, 432,052.56 and 192,236.88
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Solution
The fourth proportional to 313,032.12, 432,052.56 and 192,236.88 is: 265,328.80
Step by Step Solution
- Step 1: Write the proportion equation
313,032.12 : 432,052.56 = 192,236.88 : x - Step 2: Convert to fraction form
313,032.12/432,052.56 = 192,236.88/x - Step 3: Cross multiply
313,032.12x = 432,052.56 × 192,236.88 - Step 4: Simplify right side
313,032.12x = 83,056,436,130.41 - Step 5: Solve for x
x = 83,056,436,130.41/313,032.12 - Step 6: Final answer
x = 265,328.80
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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.