Finding the Fourth Proportional to 418,176.12, 626,651.76 and 207,393.12
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Solution
The fourth proportional to 418,176.12, 626,651.76 and 207,393.12 is: 310,785.95
Step by Step Solution
- Step 1: Write the proportion equation
418,176.12 : 626,651.76 = 207,393.12 : x - Step 2: Convert to fraction form
418,176.12/626,651.76 = 207,393.12/x - Step 3: Cross multiply
418,176.12x = 626,651.76 × 207,393.12 - Step 4: Simplify right side
418,176.12x = 129,963,263,659.89 - Step 5: Solve for x
x = 129,963,263,659.89/418,176.12 - Step 6: Final answer
x = 310,785.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.