Finding the Fourth Proportional to 305,767.04, 421,811.35 and 198,370.76
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Solution
The fourth proportional to 305,767.04, 421,811.35 and 198,370.76 is: 273,656.17
Step by Step Solution
- Step 1: Write the proportion equation
305,767.04 : 421,811.35 = 198,370.76 : x - Step 2: Convert to fraction form
305,767.04/421,811.35 = 198,370.76/x - Step 3: Cross multiply
305,767.04x = 421,811.35 × 198,370.76 - Step 4: Simplify right side
305,767.04x = 83,675,035,471.14 - Step 5: Solve for x
x = 83,675,035,471.14/305,767.04 - Step 6: Final answer
x = 273,656.17
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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.