Finding the Fourth Proportional to 189,809.18, 261,948.16 and 109,234.95
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Solution
The fourth proportional to 189,809.18, 261,948.16 and 109,234.95 is: 150,750.84
Step by Step Solution
- Step 1: Write the proportion equation
189,809.18 : 261,948.16 = 109,234.95 : x - Step 2: Convert to fraction form
189,809.18/261,948.16 = 109,234.95/x - Step 3: Cross multiply
189,809.18x = 261,948.16 × 109,234.95 - Step 4: Simplify right side
189,809.18x = 28,613,894,160.19 - Step 5: Solve for x
x = 28,613,894,160.19/189,809.18 - Step 6: Final answer
x = 150,750.84
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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.