Finding the Fourth Proportional to 418,880.97, 578,065.74 and 237,605.13
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Solution
The fourth proportional to 418,880.97, 578,065.74 and 237,605.13 is: 327,900.75
Step by Step Solution
- Step 1: Write the proportion equation
418,880.97 : 578,065.74 = 237,605.13 : x - Step 2: Convert to fraction form
418,880.97/578,065.74 = 237,605.13/x - Step 3: Cross multiply
418,880.97x = 578,065.74 × 237,605.13 - Step 4: Simplify right side
418,880.97x = 137,351,385,301.25 - Step 5: Solve for x
x = 137,351,385,301.25/418,880.97 - Step 6: Final answer
x = 327,900.75
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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.