Finding the Fourth Proportional to 279,140.28, 385,202.52 and 151,815.84
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Solution
The fourth proportional to 279,140.28, 385,202.52 and 151,815.84 is: 209,499.84
Step by Step Solution
- Step 1: Write the proportion equation
279,140.28 : 385,202.52 = 151,815.84 : x - Step 2: Convert to fraction form
279,140.28/385,202.52 = 151,815.84/x - Step 3: Cross multiply
279,140.28x = 385,202.52 × 151,815.84 - Step 4: Simplify right side
279,140.28x = 58,479,844,143.92 - Step 5: Solve for x
x = 58,479,844,143.92/279,140.28 - Step 6: Final answer
x = 209,499.84
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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.