Finding the Fourth Proportional to 309,552.13, 464,328.89 and 84,915.79
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Solution
The fourth proportional to 309,552.13, 464,328.89 and 84,915.79 is: 127,373.88
Step by Step Solution
- Step 1: Write the proportion equation
309,552.13 : 464,328.89 = 84,915.79 : x - Step 2: Convert to fraction form
309,552.13/464,328.89 = 84,915.79/x - Step 3: Cross multiply
309,552.13x = 464,328.89 × 84,915.79 - Step 4: Simplify right side
309,552.13x = 39,428,855,859.06 - Step 5: Solve for x
x = 39,428,855,859.06/309,552.13 - Step 6: Final answer
x = 127,373.88
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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.