Finding the Fourth Proportional to 190,869.40, 286,304.10 and 189,119.80
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Solution
The fourth proportional to 190,869.40, 286,304.10 and 189,119.80 is: 283,679.70
Step by Step Solution
- Step 1: Write the proportion equation
190,869.40 : 286,304.10 = 189,119.80 : x - Step 2: Convert to fraction form
190,869.40/286,304.10 = 189,119.80/x - Step 3: Cross multiply
190,869.40x = 286,304.10 × 189,119.80 - Step 4: Simplify right side
190,869.40x = 54,145,774,131.18 - Step 5: Solve for x
x = 54,145,774,131.18/190,869.40 - Step 6: Final answer
x = 283,679.70
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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.