Finding the Fourth Proportional to 418,378.92, 577,362.78 and 227,392.80
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Solution
The fourth proportional to 418,378.92, 577,362.78 and 227,392.80 is: 313,801.99
Step by Step Solution
- Step 1: Write the proportion equation
418,378.92 : 577,362.78 = 227,392.80 : x - Step 2: Convert to fraction form
418,378.92/577,362.78 = 227,392.80/x - Step 3: Cross multiply
418,378.92x = 577,362.78 × 227,392.80 - Step 4: Simplify right side
418,378.92x = 131,288,139,159.98 - Step 5: Solve for x
x = 131,288,139,159.98/418,378.92 - Step 6: Final answer
x = 313,801.99
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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.