Finding the Fourth Proportional to 319,047.99, 478,534.92 and 82,372.06
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Solution
The fourth proportional to 319,047.99, 478,534.92 and 82,372.06 is: 123,548.52
Step by Step Solution
- Step 1: Write the proportion equation
319,047.99 : 478,534.92 = 82,372.06 : x - Step 2: Convert to fraction form
319,047.99/478,534.92 = 82,372.06/x - Step 3: Cross multiply
319,047.99x = 478,534.92 × 82,372.06 - Step 4: Simplify right side
319,047.99x = 39,417,907,142.34 - Step 5: Solve for x
x = 39,417,907,142.34/319,047.99 - Step 6: Final answer
x = 123,548.52
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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.