Finding the Fourth Proportional to 307,921.20, 461,881.80 and 202,858.80
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Solution
The fourth proportional to 307,921.20, 461,881.80 and 202,858.80 is: 304,288.20
Step by Step Solution
- Step 1: Write the proportion equation
307,921.20 : 461,881.80 = 202,858.80 : x - Step 2: Convert to fraction form
307,921.20/461,881.80 = 202,858.80/x - Step 3: Cross multiply
307,921.20x = 461,881.80 × 202,858.80 - Step 4: Simplify right side
307,921.20x = 93,696,787,689.84 - Step 5: Solve for x
x = 93,696,787,689.84/307,921.20 - Step 6: Final answer
x = 304,288.20
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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.