Finding the Fourth Proportional to 221,865.63, 306,174.51 and 121,263.63
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Solution
The fourth proportional to 221,865.63, 306,174.51 and 121,263.63 is: 167,343.78
Step by Step Solution
- Step 1: Write the proportion equation
221,865.63 : 306,174.51 = 121,263.63 : x - Step 2: Convert to fraction form
221,865.63/306,174.51 = 121,263.63/x - Step 3: Cross multiply
221,865.63x = 306,174.51 × 121,263.63 - Step 4: Simplify right side
221,865.63x = 37,127,832,496.07 - Step 5: Solve for x
x = 37,127,832,496.07/221,865.63 - Step 6: Final answer
x = 167,343.78
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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.