Finding the Fourth Proportional to 418,403.79, 577,397.97 and 227,416.68
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Solution
The fourth proportional to 418,403.79, 577,397.97 and 227,416.68 is: 313,835.42
Step by Step Solution
- Step 1: Write the proportion equation
418,403.79 : 577,397.97 = 227,416.68 : x - Step 2: Convert to fraction form
418,403.79/577,397.97 = 227,416.68/x - Step 3: Cross multiply
418,403.79x = 577,397.97 × 227,416.68 - Step 4: Simplify right side
418,403.79x = 131,309,929,376.14 - Step 5: Solve for x
x = 131,309,929,376.14/418,403.79 - Step 6: Final answer
x = 313,835.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.