Finding the Fourth Proportional to 185,654.13, 256,207.28 and 100,770.99
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Solution
The fourth proportional to 185,654.13, 256,207.28 and 100,770.99 is: 139,066.45
Step by Step Solution
- Step 1: Write the proportion equation
185,654.13 : 256,207.28 = 100,770.99 : x - Step 2: Convert to fraction form
185,654.13/256,207.28 = 100,770.99/x - Step 3: Cross multiply
185,654.13x = 256,207.28 × 100,770.99 - Step 4: Simplify right side
185,654.13x = 25,818,261,250.81 - Step 5: Solve for x
x = 25,818,261,250.81/185,654.13 - Step 6: Final answer
x = 139,066.45
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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.