Finding the Fourth Proportional to 279,159.78, 385,302.50 and 170,288.18
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Solution
The fourth proportional to 279,159.78, 385,302.50 and 170,288.18 is: 235,035.50
Step by Step Solution
- Step 1: Write the proportion equation
279,159.78 : 385,302.50 = 170,288.18 : x - Step 2: Convert to fraction form
279,159.78/385,302.50 = 170,288.18/x - Step 3: Cross multiply
279,159.78x = 385,302.50 × 170,288.18 - Step 4: Simplify right side
279,159.78x = 65,612,458,696.50 - Step 5: Solve for x
x = 65,612,458,696.50/279,159.78 - Step 6: Final answer
x = 235,035.50
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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.