Finding the Fourth Proportional to 217,246.12, 299,809.89 and 135,622.76
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Solution
The fourth proportional to 217,246.12, 299,809.89 and 135,622.76 is: 187,165.80
Step by Step Solution
- Step 1: Write the proportion equation
217,246.12 : 299,809.89 = 135,622.76 : x - Step 2: Convert to fraction form
217,246.12/299,809.89 = 135,622.76/x - Step 3: Cross multiply
217,246.12x = 299,809.89 × 135,622.76 - Step 4: Simplify right side
217,246.12x = 40,661,043,258.05 - Step 5: Solve for x
x = 40,661,043,258.05/217,246.12 - Step 6: Final answer
x = 187,165.80
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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.