Finding the Fourth Proportional to 418,386.62, 577,378.05 and 227,400.05
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Solution
The fourth proportional to 418,386.62, 577,378.05 and 227,400.05 is: 313,814.52
Step by Step Solution
- Step 1: Write the proportion equation
418,386.62 : 577,378.05 = 227,400.05 : x - Step 2: Convert to fraction form
418,386.62/577,378.05 = 227,400.05/x - Step 3: Cross multiply
418,386.62x = 577,378.05 × 227,400.05 - Step 4: Simplify right side
418,386.62x = 131,295,797,438.90 - Step 5: Solve for x
x = 131,295,797,438.90/418,386.62 - Step 6: Final answer
x = 313,814.52
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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.