Finding the Fourth Proportional to 418,306.74, 577,263.30 and 227,320.13
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Solution
The fourth proportional to 418,306.74, 577,263.30 and 227,320.13 is: 313,701.78
Step by Step Solution
- Step 1: Write the proportion equation
418,306.74 : 577,263.30 = 227,320.13 : x - Step 2: Convert to fraction form
418,306.74/577,263.30 = 227,320.13/x - Step 3: Cross multiply
418,306.74x = 577,263.30 × 227,320.13 - Step 4: Simplify right side
418,306.74x = 131,223,568,400.23 - Step 5: Solve for x
x = 131,223,568,400.23/418,306.74 - Step 6: Final answer
x = 313,701.78
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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.