Finding the Fourth Proportional to 216,923.94, 299,352.06 and 121,430.70
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Solution
The fourth proportional to 216,923.94, 299,352.06 and 121,430.70 is: 167,572.70
Step by Step Solution
- Step 1: Write the proportion equation
216,923.94 : 299,352.06 = 121,430.70 : x - Step 2: Convert to fraction form
216,923.94/299,352.06 = 121,430.70/x - Step 3: Cross multiply
216,923.94x = 299,352.06 × 121,430.70 - Step 4: Simplify right side
216,923.94x = 36,350,530,192.24 - Step 5: Solve for x
x = 36,350,530,192.24/216,923.94 - Step 6: Final answer
x = 167,572.70
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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.