Finding the Fourth Proportional to 280,637.68, 418,909.34 and 245,207.92
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Solution
The fourth proportional to 280,637.68, 418,909.34 and 245,207.92 is: 366,023.15
Step by Step Solution
- Step 1: Write the proportion equation
280,637.68 : 418,909.34 = 245,207.92 : x - Step 2: Convert to fraction form
280,637.68/418,909.34 = 245,207.92/x - Step 3: Cross multiply
280,637.68x = 418,909.34 × 245,207.92 - Step 4: Simplify right side
280,637.68x = 102,719,887,929.97 - Step 5: Solve for x
x = 102,719,887,929.97/280,637.68 - Step 6: Final answer
x = 366,023.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.