Finding the Fourth Proportional to 229,153.84, 343,686.20 and 115,271.28
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Solution
The fourth proportional to 229,153.84, 343,686.20 and 115,271.28 is: 172,884.50
Step by Step Solution
- Step 1: Write the proportion equation
229,153.84 : 343,686.20 = 115,271.28 : x - Step 2: Convert to fraction form
229,153.84/343,686.20 = 115,271.28/x - Step 3: Cross multiply
229,153.84x = 343,686.20 × 115,271.28 - Step 4: Simplify right side
229,153.84x = 39,617,148,192.34 - Step 5: Solve for x
x = 39,617,148,192.34/229,153.84 - Step 6: Final answer
x = 172,884.50
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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.