Finding the Fourth Proportional to 205,145.80, 307,718.70 and 163,673.80
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Solution
The fourth proportional to 205,145.80, 307,718.70 and 163,673.80 is: 245,510.70
Step by Step Solution
- Step 1: Write the proportion equation
205,145.80 : 307,718.70 = 163,673.80 : x - Step 2: Convert to fraction form
205,145.80/307,718.70 = 163,673.80/x - Step 3: Cross multiply
205,145.80x = 307,718.70 × 163,673.80 - Step 4: Simplify right side
205,145.80x = 50,365,488,960.06 - Step 5: Solve for x
x = 50,365,488,960.06/205,145.80 - Step 6: Final answer
x = 245,510.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.