Finding the Fourth Proportional to 305,341.08, 421,370.76 and 171,205.08
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Solution
The fourth proportional to 305,341.08, 421,370.76 and 171,205.08 is: 236,263.05
Step by Step Solution
- Step 1: Write the proportion equation
305,341.08 : 421,370.76 = 171,205.08 : x - Step 2: Convert to fraction form
305,341.08/421,370.76 = 171,205.08/x - Step 3: Cross multiply
305,341.08x = 421,370.76 × 171,205.08 - Step 4: Simplify right side
305,341.08x = 72,140,814,675.46 - Step 5: Solve for x
x = 72,140,814,675.46/305,341.08 - Step 6: Final answer
x = 236,263.05
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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.