Finding the Fourth Proportional to 190,855.70, 286,283.55 and 91,063.70
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Solution
The fourth proportional to 190,855.70, 286,283.55 and 91,063.70 is: 136,595.55
Step by Step Solution
- Step 1: Write the proportion equation
190,855.70 : 286,283.55 = 91,063.70 : x - Step 2: Convert to fraction form
190,855.70/286,283.55 = 91,063.70/x - Step 3: Cross multiply
190,855.70x = 286,283.55 × 91,063.70 - Step 4: Simplify right side
190,855.70x = 26,070,039,312.14 - Step 5: Solve for x
x = 26,070,039,312.14/190,855.70 - Step 6: Final answer
x = 136,595.55
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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.