Finding the Fourth Proportional to 205,115.80, 307,673.70 and 163,643.80
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Solution
The fourth proportional to 205,115.80, 307,673.70 and 163,643.80 is: 245,465.70
Step by Step Solution
- Step 1: Write the proportion equation
205,115.80 : 307,673.70 = 163,643.80 : x - Step 2: Convert to fraction form
205,115.80/307,673.70 = 163,643.80/x - Step 3: Cross multiply
205,115.80x = 307,673.70 × 163,643.80 - Step 4: Simplify right side
205,115.80x = 50,348,893,428.06 - Step 5: Solve for x
x = 50,348,893,428.06/205,115.80 - Step 6: Final answer
x = 245,465.70
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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.