Finding the Fourth Proportional to 403,490.80, 605,527.80 and 225,809.20
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Solution
The fourth proportional to 403,490.80, 605,527.80 and 225,809.20 is: 338,876.99
Step by Step Solution
- Step 1: Write the proportion equation
403,490.80 : 605,527.80 = 225,809.20 : x - Step 2: Convert to fraction form
403,490.80/605,527.80 = 225,809.20/x - Step 3: Cross multiply
403,490.80x = 605,527.80 × 225,809.20 - Step 4: Simplify right side
403,490.80x = 136,733,748,095.76 - Step 5: Solve for x
x = 136,733,748,095.76/403,490.80 - Step 6: Final answer
x = 338,876.99
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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.