Finding the Fourth Proportional to 279,670.10, 385,942.76 and 152,345.70
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Solution
The fourth proportional to 279,670.10, 385,942.76 and 152,345.70 is: 210,235.99
Step by Step Solution
- Step 1: Write the proportion equation
279,670.10 : 385,942.76 = 152,345.70 : x - Step 2: Convert to fraction form
279,670.10/385,942.76 = 152,345.70/x - Step 3: Cross multiply
279,670.10x = 385,942.76 × 152,345.70 - Step 4: Simplify right side
279,670.10x = 58,796,719,932.13 - Step 5: Solve for x
x = 58,796,719,932.13/279,670.10 - Step 6: Final answer
x = 210,235.99
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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.