Finding the Fourth Proportional to 217,102.28, 299,747.32 and 135,554.68
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Solution
The fourth proportional to 217,102.28, 299,747.32 and 135,554.68 is: 187,156.73
Step by Step Solution
- Step 1: Write the proportion equation
217,102.28 : 299,747.32 = 135,554.68 : x - Step 2: Convert to fraction form
217,102.28/299,747.32 = 135,554.68/x - Step 3: Cross multiply
217,102.28x = 299,747.32 × 135,554.68 - Step 4: Simplify right side
217,102.28x = 40,632,152,043.46 - Step 5: Solve for x
x = 40,632,152,043.46/217,102.28 - Step 6: Final answer
x = 187,156.73
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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.