Finding the Fourth Proportional to 279,136.13, 418,370.67 and 101,435.09
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Solution
The fourth proportional to 279,136.13, 418,370.67 and 101,435.09 is: 152,031.43
Step by Step Solution
- Step 1: Write the proportion equation
279,136.13 : 418,370.67 = 101,435.09 : x - Step 2: Convert to fraction form
279,136.13/418,370.67 = 101,435.09/x - Step 3: Cross multiply
279,136.13x = 418,370.67 × 101,435.09 - Step 4: Simplify right side
279,136.13x = 42,437,464,472.96 - Step 5: Solve for x
x = 42,437,464,472.96/279,136.13 - Step 6: Final answer
x = 152,031.43
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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.