Finding the Fourth Proportional to 279,417.38, 384,861.42 and 214,762.98
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Solution
The fourth proportional to 279,417.38, 384,861.42 and 214,762.98 is: 295,808.32
Step by Step Solution
- Step 1: Write the proportion equation
279,417.38 : 384,861.42 = 214,762.98 : x - Step 2: Convert to fraction form
279,417.38/384,861.42 = 214,762.98/x - Step 3: Cross multiply
279,417.38x = 384,861.42 × 214,762.98 - Step 4: Simplify right side
279,417.38x = 82,653,985,446.23 - Step 5: Solve for x
x = 82,653,985,446.23/279,417.38 - Step 6: Final answer
x = 295,808.32
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1.5x scale
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.