Finding the Fourth Proportional to 190,435.80, 285,653.70 and 97,123.80
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Solution
The fourth proportional to 190,435.80, 285,653.70 and 97,123.80 is: 145,685.70
Step by Step Solution
- Step 1: Write the proportion equation
190,435.80 : 285,653.70 = 97,123.80 : x - Step 2: Convert to fraction form
190,435.80/285,653.70 = 97,123.80/x - Step 3: Cross multiply
190,435.80x = 285,653.70 × 97,123.80 - Step 4: Simplify right side
190,435.80x = 27,743,772,828.06 - Step 5: Solve for x
x = 27,743,772,828.06/190,435.80 - Step 6: Final answer
x = 145,685.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.