Finding the Fourth Proportional to 216,502.20, 298,579.50 and 135,937.26
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Solution
The fourth proportional to 216,502.20, 298,579.50 and 135,937.26 is: 187,471.90
Step by Step Solution
- Step 1: Write the proportion equation
216,502.20 : 298,579.50 = 135,937.26 : x - Step 2: Convert to fraction form
216,502.20/298,579.50 = 135,937.26/x - Step 3: Cross multiply
216,502.20x = 298,579.50 × 135,937.26 - Step 4: Simplify right side
216,502.20x = 40,588,079,122.17 - Step 5: Solve for x
x = 40,588,079,122.17/216,502.20 - Step 6: Final answer
x = 187,471.90
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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.