Finding the Fourth Proportional to 221,769.70, 306,045.14 and 126,276.77
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Solution
The fourth proportional to 221,769.70, 306,045.14 and 126,276.77 is: 174,263.63
Step by Step Solution
- Step 1: Write the proportion equation
221,769.70 : 306,045.14 = 126,276.77 : x - Step 2: Convert to fraction form
221,769.70/306,045.14 = 126,276.77/x - Step 3: Cross multiply
221,769.70x = 306,045.14 × 126,276.77 - Step 4: Simplify right side
221,769.70x = 38,646,391,887.13 - Step 5: Solve for x
x = 38,646,391,887.13/221,769.70 - Step 6: Final answer
x = 174,263.63
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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.