Finding the Fourth Proportional to 190,865.40, 286,298.10 and 189,115.80
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Solution
The fourth proportional to 190,865.40, 286,298.10 and 189,115.80 is: 283,673.70
Step by Step Solution
- Step 1: Write the proportion equation
190,865.40 : 286,298.10 = 189,115.80 : x - Step 2: Convert to fraction form
190,865.40/286,298.10 = 189,115.80/x - Step 3: Cross multiply
190,865.40x = 286,298.10 × 189,115.80 - Step 4: Simplify right side
190,865.40x = 54,143,494,219.98 - Step 5: Solve for x
x = 54,143,494,219.98/190,865.40 - Step 6: Final answer
x = 283,673.70
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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.