Finding the Fourth Proportional to 307,869.20, 461,803.80 and 202,806.80
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Solution
The fourth proportional to 307,869.20, 461,803.80 and 202,806.80 is: 304,210.20
Step by Step Solution
- Step 1: Write the proportion equation
307,869.20 : 461,803.80 = 202,806.80 : x - Step 2: Convert to fraction form
307,869.20/461,803.80 = 202,806.80/x - Step 3: Cross multiply
307,869.20x = 461,803.80 × 202,806.80 - Step 4: Simplify right side
307,869.20x = 93,656,950,905.84 - Step 5: Solve for x
x = 93,656,950,905.84/307,869.20 - Step 6: Final answer
x = 304,210.20
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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.