Finding the Fourth Proportional to 269,156.10, 371,129.36 and 172,230.68
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Solution
The fourth proportional to 269,156.10, 371,129.36 and 172,230.68 is: 237,482.49
Step by Step Solution
- Step 1: Write the proportion equation
269,156.10 : 371,129.36 = 172,230.68 : x - Step 2: Convert to fraction form
269,156.10/371,129.36 = 172,230.68/x - Step 3: Cross multiply
269,156.10x = 371,129.36 × 172,230.68 - Step 4: Simplify right side
269,156.10x = 63,919,862,040.76 - Step 5: Solve for x
x = 63,919,862,040.76/269,156.10 - Step 6: Final answer
x = 237,482.49
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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.